It's about time I return the favor of reading my piece and offer what little constructive criticism I can.
For starters, let's face it, the piece of work that you've written is extremely strong. It stands as a one-shot short story and it does it well. The writing immerses me in the story with a background and plot that seems to be well thought of in the confines of the 1500 word limit. But you're a serious writer and praise is nice, but like you said before, it's the flaws that you can improve on. That being said... (And remember to take my criticism with a grain of salt. I'm quite far from being an amazing writer.)
The staggered scenes where the man is at his car seem to be my only problem.
Xenon wrote...
The booming of thunder takes me away from my paradise and my bloodshot eyes open. I cannot hear the music of nature, nor feel the cool wind against my face. I realize I am in my car and the windows jail me from the outside elements. However, the humidity has not escaped me and I raise my hand to wipe the sweat from my forehead. I breathe hard and feel a gurgling in my stomach as if the personified devil is lifting out of my gut. I open the door in time as the remnants of last night spill onto grass. I feel weak. A glass item falls out under me as I fall out and land on my back, neglecting the splatter of bile below me. I figure as it rolls against the outside of my leg that it is a broken bottle of what is responsible for my current condition. I grab it for comfort before my vision fades. I pray I will return to my beloved fields.
...
The coming rain smells of iron, without a doubt polluted from the nearby city’s factories. The crack of a distant thunder wakes me as my mind is overcome with fear. I raise the broken bottle to my eyes and it is stained the color of maroon. I stand up slowly as my head begins to pound. I slowly stumble to the back of my car and lift the trunk to reveal the pale body of my victim. My stomach sinks as I lay my hand against her face, cold as the bottle—colder. The feeling of poison in my bowels returns and my head becomes light. I shut the trunk and vomit a second time onto the grass. I choke and wheeze in pain more from my heart than my stomach. Breathing deeply, I collapse to the ground on my side and attempt to remember the previous night’s events.
...
The cool dirt on my face feels comforting in this heat. I have truly descended into Hell and only the earth I lay against keeps me sane. However, I needed to rise, broken bottle in hand. I limp to the driver door, only to feel the pain of liquor and loss battering my skull. My sobering heart could not withstand the truth. I raised the bottle, smashing the driver window on my car door open like I wanted to smash the demonic frame of my friend’s cell. The bottle crumbles in my bleeding hand. The pain from what probably was a deep gash was present, but incomparable to that which tortured my mind. I slump down and lay my back against my car, then begin to sob.
...
My hands run through my hair and I snort up the mucus that begins to build up. I enter my car slowly and lay against the seat. Thunder roars as I turn on the car and look through my rear-view mirror, her hidden body in my sight. Incoming droplets patter against my coat through the broken window. I shift gear and accelerate off the cliff. My car, my dead wife, and I fall. It feels an eternity as we topple down. Yet, all I can think of is the beautiful ocean and the smell of the rain. We crash and the last living sight I behold is the deluge of water, sealing my liquid coffin.
From the get go, I feel like when he throws up and falls out from the driver's seat that the scene is a bit strange. I'm imagining him opening the door, leaning over and then throwing up, Afterward he loses his balance and doesn't have the strength to stabilize himself. Naturally he would fall to his side or face forward, and perhaps his legs still within the car. His 'fall' is more of a him losing balance and dragging himself out of his car to lay on his back.
But I'm not just nitpicking. I can visualize the story, but that is with my filling in the dots and replacing the inconsistencies.
Some other details that bothered me a bit are like when he opens the trunk and vomits soon after, he is still holding onto the glass; I mean the guy is wheezing on the floor at one point. In his state of mind, he will very likely only be able to process one thing at a time; that's part of his insanity (or least that's what I'm imagining). If I were to put myself in his mindset, I would've thrown the bottle off the cliff in disgust of having the bottle in hand, while looking at the loved one he just killed.
Question!
"I raised the bottle, smashing the driver window on my car door open like I wanted to smash the demonic frame of my friend’s cell. The bottle crumbles in my bleeding hand."
What does 'the demonic frame of my friend's cell' refer to? And the bottle crumbles in his hand? I feel like where he is holding the bottle should be intact, but rather the shattered glass of the window that he is breaking would be what would cause him damage.
In a more broad way of looking at the details I seem to have nitpicked, I feel like there was a (SLIGHT) lack of flow during the car scene. Because you establish his insanity so well, I can fill in the blanks, but because he is insane, I expect him to be more emotional, I expect him to be increasingly degrading the more he reflects, the more he remembers. I feel like he should've leave out some screams or let out a maniacal laugh in his fit of both rage and depression.
You do, however, create his ultimately broken mind when he reverts and enters his own utopia, but I feel like through the entire scene, he is in a state of shock rather than a continuous rising level of denial/insanity until which his mind can no longer handle the situation and he breaks (such as what happened at the end). He has had plenty of time to ingest the initial shock especially with the car ride to the cliff, but he seems to be stuck in that state.
Then again, you were at the 1500 word cap, I'm not sure how much you could've done even though I feel like the story was thought out with the 1500 word limit kept in mind. Remember! Grain of salt... I don't mean to offend you or the work, but with a work of this caliber, slight flaws are the only things I can pick up as a regular reader. It was a great read.