Demons of Greed, Wrath and Lust

[Creature design] So, in our current DnD campaign, some of the characters are facing a corruption arc and one of the possible futures is for them to become demons, each demon embodying a twisted version of their greatest merit. This is the dragonborn monk whose intelligence turns to God complex and whose hunger for knowledge turns to complete greed with no boundaries of how knowledge is obtained. In his demon form, the dragonborn monk is a half dragon half spider creature that uses hallucinogenic pathogens to neutralize victims and experiment on them in his lair. (here are also the sketch, lineart and some closeups for details).