General:
- Check for banding, you missed quite a few places
- Your palette was probably intentional, but keep in mind humans have a lot more green in their flesh tones than it seems. Unless for style purple isn't working out as a flesh tone. I adjusted this and brought the hair closer to the skin tone.
- Lighting: Think about how the light would hit the forms as it travels down. Would there be light or shadow where the brow turns down? Shadow. And, the face/chin casts a shadow onto the neck—that area would be in shadow.
Anatomy:
- Bottom of ear aligns with nose
- His traps are huge
- Eyebrows
Beard:
- What would cause there to be shadow where the top edge of his beard meets below his mouth?
- You made lines to suggest texture and shape to the hair, but they don't help. They don't describe the beard's shape for one (think of it as a 3D object itself), and instead they detract from the whole painting.
Here's an edit. I didn't work on the ear but it's too dark as is. Oh one more thing, try to work on a grey background, white messes up your values.
