So I suppose the colours and physical appearance was much different from any another cat species. In case if you want to make an update version then I suggest if you look into this link. it tells what the fur would actually look like if it is still around. Anyway, the despite inaccuracy, I really love your artwork.
Did you read the blog you linked?
”Smilodon may have worn more subdued hues like the modern mountain lions that live in southern California today, or perhaps it was decked in solid spots much like the cheetah, serval, black-footed cat trio in Africa. ”
So plain coloration without significant spot pattern, like that of a puma, is equally likely as that of solid spot pattern. Hues really don't matter as most mammals are colorblind. It really is the tonal values and patterning of those tonal values that make the difference.
As it turns out I was very well aware of this while I was working on this piece. Since both were an option I went with plain coat pattern mostly artistic reasons. I wanted to give the viewer a clear idea of the form of the Smilodon and how different it was. Even with coat pattern similar to living lions this animal is clearly not a lion. That's what I wanted to get across to the viewer.
I also wanted to keep the focal point strong and in the facial area and found that giving it spots would serve as a visual distraction obscuring the very aspects I wanted to achieve.
love the volume in the skin and fur
I do suggest covering he teeth though.