nice shot, very luck to get this close to a red - I hand reared one from about 2 weeks old with an eye dropper, puppy milk substitute and liquidised hazlenuts - it used to run around the house and tease the dogs when full grown, and sit in inside pocket of my jacket. It also got jealous if I sat next to my partner and used to call and chipper on in annoyance - great creatures!
You have two stunning wildlife shots posted (robin) and this red squirrel both beautiful but with distractingly bright backgrounds, This background would be easy to workwith and amend the bottom left corner to make less distracting if you wanted to to enable the eye to concerntrate on the squirrel. Also allow a little more space by back foot. Both great shots anyway.