I think it's cool, just because it's not an m3 doesnt mean it can't look like one. Good for you! It's fun to modifiy a car regardless, if you like it, it's all thy matters. Don't listen to this idiots, have fun with it!
Good luck!
Plz post more pictures! Where you got the parts, how much it cost, how you did it, etc etc. I'm planning on doing the same with my e90 328i