The first thing I noticed is that the stomach is too big on the shirt. The chest may also be an inch too big, but the stomach is probably 2 inches too big at least. The pants seem to be riding up a bit in back of the seat, and possibly a bit in the front, so the rise might need to be a bit longer.
Stylistically you seem to have a rather thin neck, although I'm not sure of your face shape but possibly a slightly more spread collar would be in order.
Stylistically you seem to have a rather thin neck, although I'm not sure of your face shape but possibly a slightly more spread collar would be in order.