Thanks guys.
And actually, i did have a place that the lightsource came from, but i forgot about the fact of ground beneath it (i'm so dumb sometimes) and therefore went and put it on its underbelly. I will edit the light on the kink in the tail though, because i dont think that'd be there either way. I also messed up on the neck under its head... i'll change that too.
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Thanks 7even, you're probably right, i could have spread it out further, although it is quite spread already in my eyes. Maybe i'll edit the head and put some there.
inkspot, i'm quite confused also. I might add some secondary lighting to the area you suggested, but i was thinking the head could have shadowed it, or generally the fact that it would have looked odd with a sliver of purple there. I've just noticed the spot of purple on the turn in the body seems odd aswel, especially when i remember where i placed the lightsource. I might change that.
just beautiful