Decroded, thanks for the advices.
the palette is limiting, but it gives me image consistency. i won't get it if i make my own palette. and still before making my own palette i probably have to learn how to use existing ones.
related to the different skin colour - as i understand it's not about race-related skin colour, so can you please show an example?
trying to make bigger faces, using your advice. are they better than old ones?
i don't feel i was able to gave them expression (which Dune guys have a lot, mostly Harkonnen one, i think. btw, does char's hands take a big part of its expressiveness in this case?)