I would have given this a much higher score if the focus was really sharp, but the waterdrops are a bit blurry and the reflection from the flash is a bit annoying. The colours are really nice! Perfect for the challenge.
Could be better. You used pastel colors, not everybody did that in this challenge. But the lighting could be improved, I don't like too much the front shine of the brush. It's a nice idea.
nicely attempted, did you try moving the brush tip closer to the right side of the image? I think it may be a stronger image, then. IMO the tip is too close to the center.