I am liking your environment concepts! Keep up the good work. Have you thought about doing concepts for a small video game idea? Like an ice level in a game similar to Spyro the Dragon, or a desert level in some RPG? You could add your own ideas to the concepts and come up with your own environment designs, and assets. For example, for a desert level design an "ancient dragon skeleton" environment asset, or something similar.
I have been learning Procreate also this year, since unfortunately my Photoshop died.