Your work is definitely not bad. Yes, there's quite a bit of work to do - I think people in this thread have done a very thorough, helpful job with that - so really all I have to say is more motivational than constructive criticism per say. When I finished college a few years ago, I was with a lot of people of various…
Hey there! I think these guys have given you some solid critique. I'll instead offer some solid resources. For some artistic concepts I recommend Andrew Price's tutorials/lectures. They are sort of geared for blender but the values in the first parts of the videos really hold up in any medium including game art. Here are…