I think it looks pretty good, though an in game screenie would be better.
The issue I see with Valve accepting is the scout doesn't hide his face, thus it would be better for the spy. (even if it maybe fits the scout's personality better)/
Curious of the tri count, etc..
Might wanna bevel edges and add more tris to smooth it out some for close up model and use this for medium lod, then make one even lower for low lod.
I'd add a headband too, I think Valve would definitely look at details like that. How does it stay on his head?