When I checked your website, I would rate it with a B+ , its kinda plain... I suggest that you play or explore new colors. Its somehow boring to look at, just my opinion, maybe because I'm a girl?
Actually, I am not a techie person as well, so somehow I don't understand what your site is all about. Maybe put a brief story / intro at the header? Maybe this is applicable to persons like me.
Just my opinion. Hope this somehow helps.