Ok, i'm not an expert at conformation but here is what I can see.
He looks amazing after just two weeks.
His front end looks pretty straight with good bone structure from shoulder to floor. In the new pictures he doesn't keep his back end still so I can't be definite, in the older picture it looks as if the point of his but (or the furthest back part of his hind) is further in than his hock but I think that is because he is leaning forward. If I had to guess his back end may be a bit under himself.(camped in I think is the term)
The length of neck and back are similar, but his behind is just a bit shorter from what I can see. Good conformation, you want to be able to have three even sections that flow together. (being an arabian with one less vertebra may be the reason, again I'm not an expert)
He has Nice prominent withers to hold a saddle but no slope in the behind. Some pictures it looks like his back on the flatter side.
I can point out a few things ( kinda) but someone with a better trained eye for conformation would do you better. They would also be able to tell you what everything means for your horse. :)
He is very beautiful, you are lucky to have him :)