Question

How to draw a mona lisa?

Answer 1

Draw looking at the picture (I don't think this can work) I think you should size the face, the shoulders, arms, etc. with lines and then draw everything as similar as posible, if that doesn't work I find a tutorial on youtube here's the link: https://www.youtube.com/watch?v=TVqLEDXM7S4 

Answer 2

I think the best ways to do it is either A: Draw it while looking at the actual picture

OR B: Trace it.