I do use DA stock for references, usually only for the pose, and on very rare occasions for the coat color/patterns.(especially if I am not 100% sure how a pattern would look)
Some samples are on my profiles here (this OOC account and Zona) or on DA under ashfisher. I use MediBang Paint, so I don't have the full scale PS manip capabilities, so I usually just draw color shade all on my program.
Just take note that stuff with backgrounds will take me a bit longer, but I will get it done :)
Just post here or message me if your interested :D