I would suggest this for the next time. Use vinegaroon to turn the leather black, Its a chemical reaction not a dye and you can make it yourself, Then paint the acrylic over the black. If you would rather use a dye do the black first and buff the hell out of it. put a coat of clear finish like resolene or any other finish that can be used as a resist, then paint the acrylic. Both ways will work, The vinegaroon will never bleed.
You can search on this site if you do not know how to make vinegaroon. Its really easy . Just vinegar and steel wool.
Michael