Pretty good first effort.
It's pretty clear that you put a lot of work in this. I was impressed with the detail, especially for a first submission. I would suggest improving the animations a bit--things were a little strange at times, like when the main character was walking, his arms didn't move. Maybe a little nit-picky, but it kinda bothered me. Other than that, I think you have a really good start. Just some minor improvements and you could have a great game.