1st, the OOF rock is overpowering and takes up to much of the frame. Full view of the bird and good eye contact sort of make up for this but maybe look at a square crop
still a very pleasing image
2nd, best out of the set for me, fantastic eye contact and detail with a super catchlight, detail on the breast feathers is also superb
3rd, bit of a nothing shot for me and maybe wouldn't of bothered adding this one as i think it weakens the set of images, a case of less is more.
4th, see above, man made perches do nothing for me.
5th, little bit of a crop in from the RHS and up would make it a stronger image, superb pose showing the colours/detail, eye contact again is spot on
One thing i do question is your shutter speed/iso, 6400 and iso 800
Sorry for giving proper critique (well my view) not a lot of that about these days on here.