Goddess under the Apple Tree Picture

For anyone who is interested what I produce when I'm in a hurry! xD
This is my work for the practical part of my art exam.
Topic was Greek mythology.
Actually, we got scenes of Hercules' heroic deeds, but these were all killing scenes!
So I chose a scene with a woman and that's it.
Goddess Athena with the golden apples.

I got 23/25 credits for this pic.
So not bad, is it?^^
It's just the theoretic part which was not so good...
But all in all I got 11/15 points, so it's in the USA mark B.

Worked with pencil, used hatchings
Time: too short
Mood while drawing: totally desperate

Will be moved to scraps later.
Uma Thurman as Medusa
Aracne
Goddess under the Apple Tree
Amazon Roughs
Athena