Thom, the problem is that the guy is using a layer with perfect forms from 3d soft. I don't.... but yes i could use the buildings right now as the base, make a new layer and draw again. I don't know if i want to do it though. I have to find a free and easy to use 3d soft to make those plans fast and dont worry about perspective while drawing. That would speed up. I am really tired of redrawing same shapes again and again :/

That being said, the video you just posed is so so great. I just had a glimpse and already know i can learn from it a lot. Thank you. I will see what i can do about the straight lines. I can't promise anything

Mouse that is true. I do not intend to make more details for the mountain, buidings are mostly just outlined, i have to add more there.... still 1/3 of the drawing is not drawn yet, so i have to continue with the line work