Thanks. Actually, the sun was hitting behind the squirrel towards the lens. And the squirrel was dark when at 0 exposure. So, I overexposed in the camera to bring out the details of the squirrel making the background look almost white.I like the picture. I've always liked squirrels. I'm betting, however, you used photoshop to remove the background. All that white is now washing over the squirrels back. Did you erase the background for a reason?
If you have a powerful enough flash, you can shoot with it in daylight for fill flash, and preserve the BG while capturing the subject in perfect exposure. If you are close enough, your popup flash will work for you. But the further away the more powerful the flash must be.
You can see in my series here http://nikonites.com/photo-critique/2679-day-beach-family.html where the sun is behind and above the subjects.
I think you're way overexposed here, as evidenced by 1/15 shutter speed, ISO 800 and the blown out highlights. Also, it looks as though the little guy has started to move, as the entire back half of his body is blurred. Nice capture, though. Wildlife (especially this close) is rare to come by.
Thank you...I think its a great shot, nice and sharp in the face. You did great for what you were working with. Squirrels run away fast and I assume this was a quick capture and you did good in a pinch without scaring the squirrel more than it may have already been.