This is probably your best picture! I think it's mostly because you have color in it. I only wish that it was more detailed. It's still a wonderful picture. I love the little bits of orange sticking out. That's probably because orange is my favorite color.

The girl looks quite good too. She almost seems to have metallic legs. I think it's just a really hard gray shade she's wearing. She just seems so casual about everything. It's great that you have personality in your picture.

Just one thing.

I really love your style, in fact I place it in my top 10 for sure.

My only issue is her rifle. Assuming she's a soldier, her rifle is her most important asset, her best friend, her life. Without it, she is nothing. With this in mind, the way she's holding her rifle, becomes strange; like a toy and not her best friend. (The apparent lack of weight to the rifle doesn't help).

I do see though, that she seems to be pointing something out to the Mech, so a simple fix ( to keep this pose) would be a shoulder strap with no slack on the rifle to her shoulder.

Sorry for being so nit picky, and i hope this helps.

Like i said though, overall I like this piece of work. So much, if I had reason right now, I'd commission you. =)

P.S. I also recognize the one year age of this, so I apologize if this is irrelevant information.

Redhead!

She's a redhead!
Apart from that, I like how you did it. I mean, how the colors came out and the playin' of shadows (If there are shadows).
Just one thing I cannot understand [I'm not bright :( ]: How does the mech (It looks like made of rock!) moves? Does it has a propulsor?

Like a cool manga cover.

It feels like "Applessed" mixed with Final Fantasy cuteness.

that's it

it's really noble drawing for art portal, but why 17+?
i can show it to my little brother without any reflections :/