I suspected it was Ganesh. Cool that he has been fused with the Lotus. Clear and simple ;-)

I think 600 might be a little too fine a grit. 320-400 is as light as I generally go for scuff sanding. Anything finer and you may be polishing rather than scuffing.

It does take a lot of practice and PATIENCE. You know the old painter's prayer: God give me patience, and give it to me now!

If it has a strong smell of solvent, it probably is, which means the coats should melt into one another. Also, if it does not ball up when you sand, that suggests a quick drying solvent based. Water based finishes tend to take a little longer to dry because water takes longer to evaporate. The exception (as in at least one of my finishes) is when the finish never quite hardens...which seems to be a feature of some solvent based finishes. Fortunately that is not your problem!