You can change the colour of the beak in Photo 2 by selecting the beak accurately, masking rest of the pic, then applying colour change on it. Something similar to
this post here.
Purplish tint on the wings
The iridiscence can be achieved by selecting the target area, masking out rest of the area, finding a high quality image showing iridiscence, clipping it, changing Blending mode to something like Colour.
Pleasant yellow color behind head
Yellow behind head is not much visible in second pic, but if you want to apply a darker colour on that little bit that is visible, it is same as changing beak colour above.
Most leaves are out of focus in the second image. My first attempt in achieving this would be to use Hue/Saturation adjustment on those leaves that are still in focus.
Seeing your past queries, I am assuming your skills on PS are receptive to above suggestions. While you attempt, post screen shots and ask questions if you encounter difficulty.
Have a great creative time.
