Drawing clean line-art actually takes some practice! You’ll probably have to learn some new drawing habits and break your old ones. Here’s my advice:
Quick, confident strokes look best! Lines drawn slowly tend to wobble, since it’s very hard–if not impossible– to keep your hand steady when you draw at that speed. Quick lines are less accurate, especially at first, but with practice, you’ll be able to aim your lines where you want to go more or less on your first shot!
If you’re drawing lines that you know will overlap (such as seams on clothing), put them on different layers! That way, when you have to erase the parts of the lines that you don’t need, it’ll look nice and clean!
Draw straight lines by pushing your hand away. Draw curves by pulling it towards you. Rotating the canvas will help you find positions to draw the line-art most effectively.
When you’re done laying down the lines, go back and add weight to them! Thicken up corners and areas where solid objects overlap, like tufts of hair or a jacket across a torso. This’ll help your lines look more dynamic and gives your drawing added dimension.
Use a small, round brush with pressure sensitivity activated on your tablet.
The color of the line-art is just as important as the colors of the piece! Don’t be afraid to replace black lines with red, brown, purple, etc.! It can really help tie a drawing together.
I decided to do another speedpaint for this one! Check it out: