Your subject matter happens to be what I enjoy the most and that is hummingbirds. I loved looking at those juvenile ruby throated hummers. Your photos are splendid.
Allan
That first image wins for me! Love it Birdie for the flowers trailing, the blend of colors in the Bg, the wing blur which gives punch to the eyes sharpness ...... all strong elements to make the image a winner #3 is also a standout. The quirkiness of the pose in #4 and the soft colored BG with those special little leaves all work well. The last has a wonderful light, for me the bottom is a little too heavy for the subject and moving that crop up might work?
These are excellent, have great impact and I am telling you you must print #1 large, that would be on my wall and shamefully I don't even print my stuff but I'd print yours