/ic/ - Artwork/Critique

I decided to finally use books to gitgud. I've been procrastinating and not getting shit done for too long.

Are the Beginner Essentials, specifically the "First Books" Loomis, etc, a good idea for someone that's already been drawing for a few years and is probably "intermediate"? Are there any fundamentals in there useful past beginner?
I was thinking of jumping straight into Color and Light since I've been holding off for years and enjoy painting. Was thinking I could brush the rust off the fundies along the way.

This is a "draw in x minutes" challenge I did here years back, for an idea of my level.