I think the safest thing to say about little ones is awww cute, and pretty color.
I have enough trouble judging big guys, but foals are really hard, being that they are all legs and bendy soft joints. This little guy currently looks all head and legs, at the expense of his neck, but who knows what he will mature to. I'm still waiting for Angel to produce a decent neck, I'm sure she will at some time.
What do I look for, well I've never had to select a baby at that age, and having raised a few foals at home here I hope I never have to, because they go through so many stages.
Im pretty sure its the spots bubba. Im goin crosseyed trying to focus on him!
What a looker! Charlie was the same way though... biiiiiig head and no neck as a baby but now he's 16.3 and he still has a ginormous head! What a cutie though. Nice long legs.
He purely looks spring loaded in that third pic...it looks like he's just going to shoot up once that long a**leg straightens out haha!