with enough work and detailing, i'm pretty sure that someone will lay down at least 15k for this

Could I possibly get more?

of course

Just work on the shading, cuz that's what really matters.

darkjaks right if you add shading you will sell it for much higher than 15k

Smaller slit, IMO. And make the thing that tilts over the visor more apparent.

Shading is an ass xD

well that's like the only thing that makes the difference, other than a good design, but since ur copying a head/modeling a helmet, that's really all that counts

It's looking good so far. Personally, I would do without the streaks on the visor.

LOL it's cortana!

Btw are you modeling this after halo 1,2, or 3? Each has their own distinctive look.

I have no clue xD

I searched 'Halo Helmets' Then I saw Scout. So I searched 'Halo Scout Helmet' then I based the head on the first image.