I tried really hard anon but I’m not quite sure if this is what you meant ;w; I’ll give a process along with explanations!
I start with a sketch/ lineart thingy (I’m just too lazy so I pulled out an old sketch of Alma Karma from D-Gray. Man sorry ;_;
Then I select the outside and then invert. After that, I color in the scheme I want it to be in.
After that, I start coloring everything directly on that layer. It’s best to stay in the color range of the scheme, otherwise it looks really whacked up. (But it might be just the way I color OTL)
If I have to use a color outside the range though, I just do this little method where I make a new layer and lower the opacity, then eyedrop it. When you get used to the colors, you won’t have to later on c:
For the trees (and rough texture in general), I use this brush! It’s really handy and fun haha. When I use it to color, I usually first use a larger brush to give the general shade to the object then use a smaller brush for details.
Afterwards I just merge both layers together and draw more details with pen/ airbrush on it directly.
I make this overlay-y thing with my brushes and set fringe on to maximum.
Afterwards, I just set it to overlay and change until it’s somewhat satisfying! ^^ I hope this helped you, anon!