Add floating crystal shards around it.

The right tentacle needs a hat now

You weren't clear on what "it" was so they're around the pet rock.

I think it's pretty clear that "it" refers to the thing you're drawing.
Also, you should add a clause in the OP, "I might honour your suggestion or just change it completely, who knows?!"

But I also drew a pet rock. And bananas for hair. And a mass of tentacles for the body at your request. I lumped yours and STM's together because they were both similar and I didn't have room to do both of those slightly seperate things.
Either way please reread the rules if you're confused because I said in them that I am able to do exactly that.

Stick a sonar in Roger's head.

Because Munch.

Roger that.

Add to the pet rock a hat with the words #makeoddworldgreatagain written on it

Make the lips scarlet red.

Roger's lips were already red so I did the pet rock's instead.

The sonar implant needs color to make it easily discernable.

I suggest a vibrant gold.

Make the lips scarlet red.

I already did that.

Can the right tentacle have a beard?!

This thing looks like childhood innocence with his pets. Give it a halo floating above its head :)

Despot Time: Seperate (If there's more than one being in the image then seperate them.)

Needs more scenery.

Could you draw some spiky mountains on the horizon?

I think Roger and our tentacle friend need some cactus pals

Make it green, then.

EDIT: Also, none of these cacti are shaped like a friend :( (Taking the slig art as a template)

here you go

Make the lips scarlet red.

I believe coloring the floating crystals a soft, ethereal blue would have a pleasing effect.

I'm running out of things to give scarlet red lips

The mountains have nothing to speak with. They should have mouths with luscious lips.

If these peaks could speak. Oh wait they can.

Make the mountain lips green.