Finally was able to finish this, though working during the American holiday weekend enhanced my burnout. I feel there is more I'd like to do with this, but it's taking too much time away from other projects. At least I did learn much in regards to line art style through this.
I've been experimenting more in how I approach scale. The last two Doctor Mercys, plus this, have been giving me some insight in how I choose to violate the laws of perspective.