[WIP] Underwater Tree

[Pukahuna]

I start this work for train dithering, any criticisms are welcome
Currently i'm having problems with the texture of the leaves, anyone know an example (in pixel art) or another thing that will help me in that?

Here's the pixel art:

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Edit:
Ah, I forgot the reference that I used for the tree
http://goo.gl/xw6lcb
I want to do the leaves pointy like these, not normal leaves

[cauli]

At first it was hard to see the tree was the focal point.

Looked kind of like just a negative shape.

To fix this, you can brighten the floor where the tree stands,
or add highlights to the top leaves of the tree,
or even add shafts of light coming from the sky

I think before moving to the shape of the leaves you need to fix these value issues

[Pukahuna]

I'll add highlights and shafts of light coming from the sky, It's just an sketch, and I need to dithering all the background before that and know how to do the leaves for start to paint the tree
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Edit:
My sketchs are REALLY bads, do not take them too seriously, you can see it there:
Before:http://i1157.photobucket.com/albums/p584/Pukahuna/Lava3_zps97dc57df.png
After:http://i1157.photobucket.com/albums/p584/Pukahuna/final_zps212e13dd.gif

[Pukahuna]

Another update, I think this style of leaf is good for this piece. I'll add more Sunbeams comming from the sky in right after dithering, and will add bubles, more fishes, etc