Vẽ mắt
Pupil: con ngươi
Iris: mống mắt
Hướng dẫn vẽ Mắt truyền thần 01 - vẽ không khó - YouTube
How to Draw Hyper Realistic Eyes | Step by Step - YouTube
Vẽ lông mày

Begin with a very simple construction drawing of the main shape of the eyebrows. The construction drawing can be highly simplified without any of the smaller bends or curves. You really just need it to capture the overall flow and size of the eyebrows. You can make it with straight or curved lines depending on what best suits the particular set.
Make a Line Drawing

Based on the construction sketch make a drawing of the outline of the eyebrows. Keeps this drawing light enough so that it can eventually blend into the shading in the final example. You can erase any extra lines left from the construction drawing once you’re done so that you have a nice and clean light line drawing before moving on to the next step.
Step 3 – Start Shading

Begin shading by applying a layer of shading with the strokes going in the general direction of the growth of the eyebrow hairs.
These strokes will act as a background layer for the strokes applied. Try and make them “medium dark” so that the darker strokes applied over top of them are visible.
Step 4 – Finish the Eyebrows Drawing

To finish the drawing add the secondary layer of shading as a series of quick strokes that act as the individual hairs that comprise the eyebrows.
To make these first put more pressure on the pencil and then quick pull it away from the paper so that you end up with a darker base and a slight tip for the “hairs”.
