This is for assasin, he wanted me to make a tut for drawing. Btw this is digital art I can make traditionel tut too :D The canvas size doesn't matter ,')
1. Go to your local drawing app. (in this tut I used sketchbook)
2. Get a pencil type brush, make it big and low opacity
3. Draw your sketch, make it as messy as you can.
Your sketch might be something like this:

4. Now that you have that.. You clean the sketch on a different layer, and do a bit of planning.
Which can look like this:

5. Then, you add shadows. I usually do them in the same brush but red colored.
Like this!:

6. Do the exact same thing! But with blue, and your doing this in the spots where light is!
How it might turn out now!:

And then.. finally.. I will post the linart later! And the rest of the tutorial!
I made this in sketchbook, is it good?
I gave it more shadow