Here are some colors and some quick rendering using photos.

I've fused my favorite ideas together in a new sketch for the pumkin-bull. After that I just wanted to clean him up in Procreate but I lost track of time... Sorry...

Some line-up and shape carving over my sketchs ! The scale of the monsters didn't helped...

Here I selected couple of my Forest Constructs to refine them later. I was going for the variety in their characteristics and giving them different roles in a party

Here are the three creatures I've selected. The first one is a bull infected by a pumkin, but if you shoot the pumkin, the bull gets lighter and his speed gain a boost. The second one is a hummingbird vine, but I don't know if it suck the hero's life like fu"@ing mosquitos or give health back to the other animals... Maybe both ? And the third is a 3 stage bramble mantis, first little and cute, but getting bigger and monster like when it gets older...

Thanks for the course, this is very helpfull ! I tried the first exercice but there was too much different ideas and I've lost focus... The final idea is GMO plants became parasites that infect the fauna to take revanche on the humans.