It's hard to make a similar shape. I think your color arrangement is really stable!
But the place where the picture takes up in the video is small, so it takes a lot of observation to follow the detailed description together. Is it difficult to tell me about the brush or tool you are using? If I get something similar, I think I can copy it.
Maybe because you're using a controller, if you're looking at the screen, the settings change a lot at the same time. I'm learning from the video, so I want to follow you in detail, but it's hard to see.