Mazil, I love your style!

The colors work great in those sets and they're very mellow-like.
For the first set, I like how small and compact it is. It fits well with the original image and the colors are great. I usually hate shades of green because they never work well for me!
For the second set, I like the text on this one in addition to the coloring I mentioned earlier. The text is very simple but very effective, and the subtle differences between each word work nicely. Great job! I like the tilted border, too.
I also have two sets I'd like people to rate
First:
Note that this set uses transparent PNG-ness, so if you're not using the latest version of Internet Explorer or Firefox, you might not see the transparency.
Second:
This is a hummingbird signature, that I vectored by my self.

It's my very first vector and I'm proud of the outcome, what do you guys think?

I made two versions, one transparent, one on a white background.