For the first, it's way too bright in the pink on the top left. You have like a gradient thing going on on the right, but it just starts to hurt. I understand what you're doing with the sky, but yeah, its a little too pink.
Second isn't bad, it's just really boring. I guess because a 1/3 of the tag is flat.
The last one is nice, but the sprite sticks out like a sore thumb. Not blended in well enough at all.