Hi @stef1, thanks for stopping by.
Generally, when it comes to landscapes, I dampen all the paper to remove the grease, and then I wait for it to dry (that's why it has to be very taut, I use staples). But I don't wait for it to dry completely, I start painting when it's wet, but very little. And then I give the brushstrokes, always from the upper part of the painting, which are usually the skies, and that way I get more uniform washes.