You’re the last homework submission left for Week 1! Sorry it’s so late – But your bush tests look very promising. Lots of good examples. Excellent work this first week.
You’ve achieved a “leafy-nes” that I’m happy to see. Structurally I feel like the bushes in the art are more clumpy that yours:

Yours is like one giant clump. Figuring out how to isolate the clumps while still maintaining a unified bush object would be ideal.
Perhaps some transferring of normals from a simpler bush mesh could be the answer. Have you seen the Ghibli tree tutorial? He goes over the concept there.
This example looks extremely promising too:

Only criticism is that it feels very flat. I’d like to see more definitive light to shadowed regions. Potentially could also be solved with normal transfer.
Keep the test coming for week 2! You’ve got a glorious result in your sights 👍