Something about the chest and overall posture is really bugging me, but I can't quite put my finger on it. He just seems awkwardly upright yet at the same time too hunched over? His neck seems too upright and stiff, and something seems awfully weird with the shoulders and clavicles. I feel like the clavicles are too straight across for how its body is oriented, as well as maybe being a bit too high up? At the angle we're looking at it, the clavicles should definitely at least for a gentle U (Most birds have a V shaped furcula, but even some dinos like Velociraptor, Allosaurus, etc had softer V-shaped furcula). Maybe if we saw it from the underside, where we would be seeing them straight-on they'd look straight like that but not from this angle. :\ Humans have it straight on from a
front view, but an angle like that should definitely show a bend like
this begins to show. I would imagine a creature that seems to have anatomy more like a theropod dinosaur (and by that token, birds) would have similar shape.
...hopefully all of that made sense. :U
Regardless, I like it. I think I prefer the quadrupedal look of something more like in Six-Eight-Two, but that's mostly because that was closer to what I initially imagined when I first read 682's page (albeit maybe not so monitor lizard-like but with more digitigrade mammalian legs), not a bipedal creature. I do think that so far 682 is looking vaguely reptilian and not drastically so. Once (if?) it gets fur I think it will help even more.
Maybe 682 is primarily bipedal, but can go into a quadrupedal stance and even walk on all fours? It looks like it could be able to. I think the arms might just be long enough.