So I finished it!
I didn't actually start the painting for a while but oh well. I tried to push myself with the details and lighting here. It's not quite what I wanted but it's enough to call finished I suppose. It always sucks when you're working on a picture for a long time and by the time you finish there are several thousand mistakes you've discovered or could've avoided with your newfound knowledge but oh well.
Just one more picture (which won't take nearly as long as this did) then I open comms!