This Snapping Turtle piece to the left is a finished piece for that collection. And below I'm going to go through the process steps to create the art.
Reference:


And using a lightpad I pretty literally drew the snapping turtle with the photo underneath to use for details & proportions. I did have to make some adjustments and line decisions, especially interpreting the back shell and repositioning the legs and feet. And since this is a Mouse Guard piece, I also had to draw some mice. I did that on separate sheets of paper––one a Guardmouse protecting the other, a mouse drawing water.

Layout:
With those drawing scanned into photoshop, I could make edits and adjustments until I found the positions I liked for each character. To help me see each form, as well as help define the landscape I'd neglected to draw in the pencils drawings, I did a quick digital color job to rough in the shapes of water and grass.
I may have gone a bit overboard on the 'quick' digital coloring mock up--but having the landscape defined this way helped me in the next step defining the inking values.

I printed out the above digital layout on standard copy paper and taped that to the back of a sheet of Strathmore 300 series Bristol. On my lightpad I was able to see through the surface of the bristol down to the printout to use as a guide to ink from. I used Copic Multiliner SP pens (I think I only used the 0.7 and 0.3 nibs on this one).
As I said above, having the digital color reference for the light and dark areas on the stones helped me as I stippled all that rock and stone texture.

With the inks completed and scanned back into Photoshop, I started on the coloring process. I used my colors from the mock-up as a starting point as I flatted in the base colors. This process is called 'flatting since all the colors are just that––flat colors with no texture or shading. It's just a way to establish where the various colors start and stop.
I also added a color hold at this stage on the grass and the water and some of the turtle's details. A color hold is where I want the ink work to be isolated and painted a color other than black.

The last step was to do all the rendering and adding light and shadow and texture to the piece. I do this almost entirely with the Dodge and Burn tools in Photoshop while using a stock texture brush.
I like that this piece has a narrative to it. When doing the layout I opted to rough in a clutch of eggs to show the turtle's motivations, and at the inking stage I put in a broken bow and a few arrows in the turtle's face. With just those little elements this single image tells several moments from before this tense snapshot of a Guardmouse's life.