No it's not illegal to feed, just don't hunt within 200 yds. of food for at least 10 days after all traces are gone. DNR Ranger would be looking very closely at a setup like this and likely asking some hard questions if not just outright arresting anybody with a weapon within 200 yds. One of the Rangers I work with spent the better part of a month observing a baited area and finally catching the guy on a stand over the bait.
BTW, it looks like a 2 1/2 yr old that would likely field dress at about 110 pounds. Leave him for another 2 years and you might have a respectable deer. I checked in a 5 1/2 year old 11 pt. last week that field dressed 157 lbs 19 1/2" outside spread and 20 1/4" main beam.
Not huge, but better than average for a North Georgia mountain buck.