Update - another page painting after a photo... done using Tria inks (I heard they are taken out of stock! O_o) and some Citadel paint acrylics i had lying around. The ink washes do work really great for me. I ditched using the prisma colors since i can;t keep the points from breaking off and i have more fun with paint anywayz. I tried using some alcohol to make some texture top left corner but ended up a bit scared to go close to the picture... maybe i'll go back in in photoshop since it feels like some sort of boundary now.
Voraz - thanks!
Ditchman - thx! Basically what i do is a take on the process Coro showed way back at the amsterdam workshop. What happens is i do a pencil sketch, then ink it with a marker that doesnt bleed in tria ink or water (so basically any rotring, indian ink, brush pen, whatever) and erase the pencil since that will smudge in the ink. Then i quickly paint with the Tria refill and a pencil and fill in the basic shapes with some contrasting color, as fast as possible. So then there is monochrome shapes. THen some Tria markers to create a basic shading, so i use gray and so on to darken it. Now the image is really quite medium/dark. Then i use ink washes and acrylics to make the colors and shading i want, and then i use lighter acrylics (also thinned down) to bring up the lighter parts from the dark. You do need some time and patience, make sure you apply the acrylics thin. And use sturdy paper. But if you want to see a real master of this technique look up Coro's old sketchbook thread.