Here is what I do.
Years ago on the Hirst Atrs forum worked our colors that work for Hydocal and resin. I can not get the colors any more so I when to Home Depot and had them mixed.
This is Glidden House Paint
The very dark green gray is near the base color of the base resin. Glidden Alpine Meadow. You will not need it
Dry brush the Glazed Ginger directly over the base Dwarvenite.
Then highlight it with Brook green. The Brook green is almost white egg shell.
The stone giant is just two colors. Use light brush strokes. I like a large mop brush for this kind of dry brush.
There are some more colors used with the resin. They are much like earth stone and card board. Paint them in before the dry brush.
I used umber, and the Gray base coat on this set. I used cardboard and cavern dry brush along with olive dry brush and earth stone.
I think the blend of paints in the videos will look good with the earth stone base for the flow stone.I used cardboard and several blends of cavern dry brush and Brook Green.
Base colors and primer make a lot of difference.The resin has a different texture this makes more difference over hydocal. Black primer will give the same colors a much bluer look.
I use the Glidden colors over Styrofoam. The yellow,olive,cavern mix my be better for some.