The fur looks too short to be full lab, though my black lab mix has really short hair similar to that.
It may be the angle, but the face more flat than a lab. It does kind of look like it might be part pitbull in the snout and ear area, as well as the fur type.
I almost want to say it's a pitbull/lab mix, but maybe even part boxer rather than pitbull. With those features, boxer seems more likely.
