TehMikuruSlave wrote...
Their arms are too straight, and do not look like they would be in that postion realistically. You acutally use many straight lines where I feel they should not have been completely straight, such as the man's pants, his arms, and so on.
I agree with pretty much everything else said by TehMikuruSlave, but I feel this is a very important point. Your characters feel very rigid and drawing their arms with more of a curve would make it look much more natural (remember that our bodies are not simply hard flat edges and that there are muscles which give form). Also, be sure to work on drawing hands and don't hide them behind their backs just to avoid drawing them. You can only get better through practice!
My favorite part would definitely be the faces, as they give a nice cutesy look to the characters.