Love the colours and a sweet looking bird but this image is full of artifacts from the masking you did during processing, especially the head, perch and tail! The perch also has some discontinuties in blur or apparent focus.
That's a beautiful hummingbird. You got its colors very well.
I love the detail and pose. The composition and perch are very good too.
I like the crop on the repost much better that on the first picture.
Maybe a lower shooting angle would have helped with the BG, but it's not bad as it is.