Holy crap! That almost looks like an oil painting! Do you use those open acrylics that allow for slower drying time? I've never used them before. How do you blend so well? That's one of my biggest bugaboos with acrylics. I have an acrylic commission coming up for my fundraiser and I may post the WIP and ask for your input as I go along if that's ok. I am not as experienced with paint as I am with the dryer mediums.
And honestly Equusketch i use the acrylics from Wal-Mart lol! The nearest "art store" is about 2 hours away and Wal-Mart's pretty much the only place I can find paint (small town he he).
I used to work alot in oils because I couldnt get the hang of blending acrylics either because they dry so fast.
However, the more layers you put on the slower they take to dry. Also, if you mess up you can always cover it & try again!
With this one, I had a base coat that was the "underlying" shade in the horse's color. It was pretty thin/watery paint so I had to put about 4 coats on (i keep a hairdryer on hand because I can get impatient lol).
Then I added another wet layer & started mixing in the darker & lighter shades where they were needed (dark on her forehead, light on her muzzle).
After that I put down the really light/white areas (lightened up my colors & added some water) and then the black spots came last.
I always do white markings last so that the darker colors don't mess it up ;)