This is a very nice set of images. #4 and #5 with the reflection are my favourites, although I am not a fan of the close crops. For example, if it was mine, I would have a bit more space on the right side of the image. This gives the appearance of the bird having some space to move into, otherwise it is a very static portrait. I would say the same for #2 and #3, except in reverse. In fact, in #1 and #3, the bird is very centered in the image, and this is not always the best place for the subject. Rule of thirds is relevant here, in my opinion.
WesternGuy