A quick look at tribes in games:
Mood Board on Trible Game concepts, this includes Japanese clans, Halo Atriox Tribe, The Forest Tribe, Far Cry Primal, Hylek from GW2, Middle Earth: Shadow Of War Feral Tribe, Horizon Zero Dawn, and tribal concept mount. All of these were chosen for their different looks and styles. The different looks and colors give me a wide variety of options and look for characters.
Mayan Civilization

I chose the Mayan civilization because of there very tribal tendencies and beliefs, they all had a role and all had to follow it. This is going to be a good tribe because of the different roles in the Mayan Civilization there where, workers, hunter, and warriors.
Action

RPG
Role playing game mood board, with games that are highly recommended for game play and style. Survival and decisions are something that is needed to make a RPG work and that is why i selected these games because of there success.
Ui is something that is used in games to show health bars, other options like main menu character skill trees and inventories. Crafting Uis are also included as well as production queue, health bars, items hot bars and inventories.
Level Design
This pictures were selected because of there effect they have as you walk around the level, the pictures include shadowing which adds depth and changes the view of the level improved the focus on specific features of the map.
Features of games
This mood board is of features of games like skill trees, vehicles, companions, Mining/gathering, crafting and skill trees allowing complete control over the story. These features were selected because of what they represent and what they game can include.