Looking great! These are all very close.
1. Similar to what Adrian mentioned, the lighting should be a little brighter. I’m not sure it needs to be closer though as you can see how his forehead is a similar brightness as his chin, and the light is coming from slightly above to shadow his eyes, indicating that the source is farther away – there’s not much decay between the two points.
2. Same comment as Adrian, it just needs to be softer overall but still retain the darker shadows in the corners of his mouth and such. In yours those are all chased away. Try setting this up manually rather than using an HDRI to see what difference it makes.
3. This is a tricky one but it looks good! The blue light definitely needs to be more prominent though, and notice how the inner corners of his eyes are in shadow in the reference.
4. Nice job! I’d agree the light could be moved a little closer – notice the size of the highlight in the reference and how it fills up a good portion of the forehead.
5. This is a really good match. My only comments were also about the key light being a bit too bright and it needing a sliver of rim light.
Congrats on finishing the course and keep up the good work!
