Right, so I pulled out of the previous GFX round due to not being able to finish on time. Since then I've been working on the image on-and-off and now it's finished only about a week late.
The picture shown below is half the size, the fullsize one can be found by clicking on the picture.
The full resolution pic (1280xs1024) is low quality...the high quality version is 1.1Mb and doesn't fit on photobucket xD Lame. Except I feel justified with the size...this was hand-drawn from start to finish.
I should have tidied up the sketchlines more, but wasn't actually intending to spend this much effort on it. Meh.