Well it's ok to inspire yourself from gravity work "a little", but this is a bit too much.. I found the image I was talking about, scaled it and put it over yours and it's pretty much an exact trace. Don't take this the wrong way, but something more original would be appreciated..
The gravity image at 100% opacity + yours at 50% opacity (semi-transparent).
erm... I always make some mistake... Thx for the let me know about it... I was in such a rush that I didnt see it again ~.~
curiosly, I asked for some advise of colors to my boyfriend... And he doesnt noticed it too... ~.~