Great looking tractor. What size are the front and rear tires? If yo do a lot of loader work, you might want to consider swapping the front tires from side to side. That way the track will be a few inches wider and the tire tread will still be in the correct direction. I'd also recommend loading the tires and some heavy implement or weight for the rear with the loader in use.
I know the first photo was just a photo shoot, but make sure you use the seat belt.
Also, with a post hole digger, it's possible to get them stuck because they can't be reversed, so go slowly and keep cleaning out the hole until you get the feel for the auger vs the soil. There should be some manufacturer's plate on the post hole digger unless it's really old. A check with the manufacturer eith through a dealer, by phone or the internet should tell you the HP requirements, weight, etc.
Good luck.