I'm sorry if I sound a bit harsh, I doesn't wanted to criticize your art skill in any way, and taste is a very subjective thing.
I see what you done on the page, I'm almost 100% sure that's will benefit you. And you guys do whatever you want after all. It just drove me crazy to see a game like that on a blank page...
Edit : god damn WHO made concept art of that quality level for a jam !?