|Greetings from the Critque Club!
This is a good choice for this challenge, the colors are vibrant and lush. Your framing is very much centered, while it can work sometimes, in this case there just isn't enough going on in the photo to keep my interest. You look at it, say okay, this is a brightly colored bird, and that's it. It just leaves you hanging there. I'm not sure what would make it more interesting. Perhaps having the bird sitting on a finger instead, That would really bring out the fact that only the bird is in color. As it is, the cage and blinds are very sterile, and not very colorful. Having a colorful background will really drive the point home that only the bird is in color.
Your lighting is fine in the photo. The exposure is spot on and that's good.
Your depth of field is fairly high, it could be a bit lower to soften the background, such as the window blinds.
Your desaturation technique is a little harsh, softening the transition would've helped. Right now it's bam! in your face trasition.
The biggest problems with this photo is the fact that there's nothing there to keep your attention. Just having bright colors isn't always going to keep your viewer interested. I really think a different background etc would've helped your photo tremendously. Also using a bigger aperture would've softened your background. It has potential, but your delivery needs a little work to really cash in on that.
Good try, and I look forward to future submissions.