This doesn't look sloppy, it looks... I don't know the word, but it looks like it is supposed to be exactly how it is. I really like it. I just love how you put all of the bright, colorful flowers against the grayscale foreground, and all of the colors are complimented perfectly. You also managed to pack all of those flowers/colors together without making it look overfilled. And the pretty speckles in the background give it a whimsical effect. It's a really wonderful piece!
Plus I always have a soft spot in my heart for black cats~