Id go find that deer. That arrow looked good in my opinion. Like someone else said..when I see them walk off slow like that they are sick. A gut or liver shot. Either way, he will most likely be lying out there somewhere. Take a friend or two and scour that area. I dont think he will go far and hell be laying somewhere.

You spent a month hunting him. You ought to spend at least 3-4 hours looking for him.