Rowan conformation, what do you think?

After his amazing bodywork session, Rowan has started standing square (sometimes). I got this picture of him yesterday and thought it might be a good one to use to ask what people see in his conformation. It's important to note that he's standing a little downhill -- he's not built downhill. His butt and withers are about the same height. He's 15'2hh or a tad less. He still has a little filling out to do, but I think it's possible to get an idea now of how he's basically built.

I'm also wondering what jumps out at people, looking at him, as a discipline he might be built for. Right now, I'm thinking he would be good on trails, because he's so curious and calm. I mentioned that to the trainer and she said maybe also trail classes. And then I thought working equitation.

This same trainer thought he wouldn't go far with jumping or dressage, even if he was good at them, because judges would be prejudiced against him because he doesn't fit the typical "look" in those sports.

Obviously, I'm going to try to figure out what he might like to do, I'm just wondering if, conformationally, there are any red flags that would prevent him from doing anything in particular. Or if he really seems like he's built for something in particular.