Pushing this further?

[ixspen]

I would suggest you study multiple lighting scenario.As i find this one not helping show form.

I do not feel the roundess of the neck the value change doesn't change rapidly enought to indicate a cylinder like form

I also feel the texture you applied for the hair section doesn't indicate accurately what i think is leaf
A leaf as alway as center line(vein) that branch into smaller one.Not random veins as far as i know.Try to base you texture on observation not just blindly applying indication.Try to understand the grouping and direction and the shadow pattern of a texture because texture is also value change on a different scale.''A texture is way to complex to be accurate we strive as artist to create the illusion of texture''

Maybe you could try to do a few study of plant
http://drawabox.com/lesson/3

Thank you, darktiste!

I'm still working, but may I ask for your thoughts on the alterations so far? In addition to changing the leaves, I've altered the along the neck and I'm working on the lighting facing frontward instead.