I want to theme my kitchen these colors. does this sound okay?

Okay, I think that that would be really pretty! I don't usually think blue is the best color for a kitchen but with the black, yellow, and white it would be great. Yes, that is a lot of colors for one room but if you make sure you don't add anymore it would look fine. Black and white go together great and so do yellow and blue. Good luck! Oh, and for the bonus, do the second to last. You don't want your kitchen to look too dark, plus darker colors will make it look smaller.