Commission made as a birthday present for a good friend of mine. The characters are our alter-egos made when I was 18 and he was 17 years old. The Wanderer - his alter ego - is an adimentsional traveler in his words, while the Warden - my alter ego - is also a traveler who travels between dimensions, space and time, collecting and studying everything he can of the most diverse worlds and sharing this knowledge with others of his Order of Wardens.
And the tentacles? Maybe some Great Old Ones' follower, or just some cave octopuses. Tentacles are a pretty "extradimensional" thing.
Oh and the microraptor in the Warden shoulder is named Finn.