A Quick Stegosaurus

Photo reference:  Stegosaurus stenops at Discovery Place, Charlotte, NC - taken by midwinter.

Materials: pencil on glossy paper, acrylics, brushes, water...

Progress:  Fair, but this WIP still unfinished.

I plan to add more detail to skin and scales, and contemplate a subtle sunset...
(Click on any of the pics to enlarge them.) 

UPDATE Dec 3rd:

Here I have begun adding scales to the stegosaur. 
So far, only the hind leg and part of the tail has been scaled...