Still very novice painter but I need some advice. Im looking to make a sort of water color type tiedye shit like pic related. I was trying to use it for the bases for my Emperors Children army, cover in black sand and have the color show through on foot prints (or do my usual mordant earth with the colors showing in the cracks). I understand it makes no sense, but what should I use to get a pattern like this? Acrylics seem to just mix and turn into mud.