Awesome detail, incredibly smooth texture! Are you using craft paints, or acrylics? I can't actually tell.
Golden Fluid Acrylics - a bit like craft paints with a very high pigment count.
I've got Golden Heavy Body, which is too thick/has low flow, and Grumbacher Galleria. I've also got Liquitex Soft Body, which seems to work well. What size/type of brushes do you use? I like size 0-2 Script Liners, but i haven't found any Flats i like yet.
Heavy body paints are much harder to work with because they have very little flow. I only work with 1 and 0 size rounds. Liners are similar, but the bristles are longer so you have less control when it comes to contours, etc.