It's a great start, Thomas. I like the concept, and I am trying to incorporate more interesting backgrounds in my paintings.
My first reaction is that the background is nearly equivalent in detail and in tone as your subject. Think about a camera's depth of field.... whatever is equivalent in distance from the lens will be equally in focus. Closer or further away will creep out of focus. So, your left flower may be focused along with the bird. The others might go lighter and "fuzzier." They are almost there already (perhaps lifting off a bit of color would help?).
A tiny bit more detail and darkened colors on the bird will also highlight its presence and importance among the other items in the painting. A slightly darker edge along the top of the head will increase contrast with the sky background and attract the eye more.
Keep working, but don't overdo it as I tend to do!
This painting has a nice, soft touch; and I would hate to lose that!