The last one is the strongest composition and has the best light, though it could do with touch less magenta (though not as green as the next to last image.)
Dave, what a great set of pics, really enjoyed these. I'm curious given your location where these taken at Wichita Mountains? I spent a weekend there many years ago and loved the place.
A very nice set of an impressive animal.
The last is my favorite but I think it has a purple cast that can be easily corrected in post processing.
Chris