No worries Mr Payne.
The cartridge box should be considerably higher, riding on his butt cheek w/ the straps under the belt. That way it doesn't bounce all around and bruise the heck out of you on a march yet is still readily accessible. The haversack & canteen would also be higher though they probably wouldn't be under his belt.
As an infantryman that pistol would be in the belt of a Cav soldier not an Infantryman.
It wasn't uncommon for a soldier to wear every bit of equipment he was issued then push it all around to the front of his body so it could be seen and his status as a soldier would not be in doubt. That would have been a studio shot.
The Trans Mississippi CS soldier was every bit as disciplined as his AoT or ANV equivelant. He wasn't as well equipped and was no where nearly as well led. But like any Army most of the officers learned fast and those of the Trans Mississippi & Indian Territory were as schooled in Drill as their US counterparts, any who say they weren't... need to start reading about how the CS troops looked & acted at places like Wilsons Creek, Pea Ridge etc. They were soldiers, not rank amatuers playing at war. There is a significant difference, the problem is that too many in the hobby don't know that difference.