Very fun class, thanks a lot Remco Bakker for sharing your process with us. I finished one cactus for now, but I'm gonna make a series of 8 and after I'm looking forward to make a version with all my cactus together in the same bowl ^^
Here is one of my sketch after I inked it.
See below my final after coloration ^^
Here's some other cactus I made for the same series :)