isn't that an improper way to hold a rifle?

Some people like to grip the magwell. It puts a lot less strain on your arms as opposed to forward grip, but you lose a lot of your control over the rife when transitioning targets or managing recoil as a trade off. I don't shoot that way myself, because it just feels weird, but it's a perfectly viable shooting position for some people.

I will say that the magazines look a little odd in this picture. She may just be clipping two together, but it still looks wonky.

Even stranger, is that suppressor/gas tube setup...

No sling? What a pain to carry around.

She's got some really bad comouflage...
Also her legs look short to me.