Ah yes, I'd forgotten all about Dark Creatures! I think for the most part it's making more sense now.

In particular, I think Murfy with the General is a good choice, since they're both kinda counsellors.
Some points:

The Slapdash is now way below the other Hoodlums, but that doesn't really matter.

I think the Walking Shell is too high (and I admit it was that way on my list too). Maybe we could move it between the Photographer and Paluchard, as a minor helper from Rayman 2? We could also replace the Minotaur with the Toad, since Olympus Maximus is already represented by the Dark Creature now, whereas Toad Story and 20000 Lums Under the Sea currently aren't.

Maybe we could replace the Janod with a
n Angry Bird Red Bird, so that the Desert of Dijiridoos is represented.

For the Tentacle Claw, we should probably use the light-blue killable variant since it's so low on the list, and that way we clearly represent the Sea of Serendipity too.

It's probably better to use Eig than the Sea Dragon indeed, since the current arrangement puts the latter several levels above the Mechanical Dragon.

I'm not sure about the placement of Ludivs in the middle of the "Rayman's allies" section – technically, they're fairies (although it would be hard to justify putting them any higher). I'm at a loss as to who else we could put there though… It's a pity there are no good witches in Rayman!

I notice you swapped Sergueï with Reflux 1. In principle it makes sense, but it still feels funny to have Reflux so low (even if he appears again near the top). Does anyone else have any thoughts on this?

I also notice you replaced the normal Knaaren with Gumsi. I'm not sure about this, since Gumsi is considered neutral (but so is Umber I guess), and that position is a bit low for him. Maybe we should leave that as the Knaaren, with a sort of "connection by proxy" via Gumsi to the First King?
We're nearly there. Thanks for working on this!
