This is, IMO, the best shot youve posted here. The light gives the squirrel modelling, pulls it forward in the picture area, separates it from the background... and even puts a catchlight in the eye! Id be tempted to clone out some of the oof highlights in the foliage (by the eye, above the arch of the back, where tail joins body), just to separate it a little more. Then Id make a print of it and hang it on the wall...
Thanks Doylem. Since I got the 300 mm I have really been enjoying my squirrels and birds. Its 11 months since I started taking pictures, and I certainly can see the difference. I'm going to fire up the printer in the next little while.