It works fine but you will need a point of difference with other sniper games. All I would say is that you don't use stick figures (I know you said the graphics aren't the final style) cause I hate stick figures... and they hate me. Actually use stick figures so I can kill some more of them...
Has a lot of potential... good graphics and I like the control system... had no dramas with it. Just needs more backgrounds and "soldier" types... I can't wait to be out flying over fields etc giving villagers hell while they throw pitchforks at me, attacking castles etc... keep it going.
Not too bad for playcrafter but is way too easy. With a bit more time put into it making it longer and harder with some more variation in levels and enemies you'll get something good...