Heels aren't contracted, but may be a little underrun. Toe and breakover are WAY too long, get that farrier to him stat!
Watch him for laminitis, that thickened white line is a classic sign of chronic laminitic issues. The good news for you is that it looks to me like he will be easy to rehabilitate. He may be skinny, it's hard to judge with that much coat on him, but a horse CAN be skinny and laminitic at the same time! It can be a problem with the mechanics of the hoof or it can be dietary and in fact excess protein can be the cause, not JUST sugar or fat. We have a QH that absolutely cannot be fed protein in any decent amount or he goes sore, but he can be obese with no adverse effects to his feet.
It is VERY easy to tip a chronic pony over the edge and give it a bout of acute laminitis. My old pony was chronic lami when we got him and a few weeks later we let him out into the pasture with the other horses for half an hour (!! That was literally ALL) and BAM he was immediately lame.
Be careful with this little guy. You don't want to cause a bigger problem.
Re the dandruff issue if the medicated shampoo has reduced it then keep using it!!! If it works don't change a thing.
Conformationally he's not too bad. A little bit downhill, maybe, and I don't much care for his neck, but other than that he's pretty good. Looks like a nice shoulder, I like his hindquarter, LOVELY short cannons, and he has great bone for his size. Those pasterns are a tad short but look like the angle is ok.