Squirrel.... ehhh.
With #2, I'm not sure you know how close you are to a very good portrait. You have the body turned (perhaps a bit too much), great back lighting, handsome model, but what you have that many photographers miss........ you created lines for the viewer to follow. The line of the shoulders, the bend of the elbow (if you have anything left below this, I would have a revisit on the crop), the models face is not facing the camera, but his eyes are engaging us as viewers and the brim of his cap adds another set of lines. IMO, this is a good start. The one element missing is having his face lit enough. Simply using the built-in flash wouldv'e helped here.
Personally, I would try leaving only a small border of the background on the right edge of the frame for a more elongated crop rather than square, pushing the image to more of a RoT adherence. I would also consider trying to burn the background upper right and lower left.
Thanks for sharing.