Trying to work a couple things out.

[Einver]

if you still want some critique, i will give my two cents.

There are three main problems with the last picture, one is the values.
The whole picture looks dark, dull. You need to pull those darks/lights to make the picture more interesting.
And second, composition.
In the last picture, the flow of the image leads the eye towards that evil red cloud from her hand, but the point of interest still resides on her eyes.

And finally, storytelling. Why is a wizard girl in the middle of nonwhere casting an evil spell or something like that? i mean, you already explained what is she doing in your last post, but without that explanation the viewer is lost.

Hope this helps!

Thanks for the insight. I showed the image to my friends and classmates and they were able to discern that she's practicing necromancy in the forest without any explanation, but I did do some touch-ups in regards to your first two points. I'll certainly keep this crit in mind next time I'm working on a more involved piece.