Wow I love your artwork! I would start with social media, such as instagram or TikTok (if you can produce videos of your art making process), and say you're open for commission.

Hey! I think there are online places that let you offer your skills for freelance work, such as Fiverr, and Upwork. Those places will charge you a percentage of your earnings though, for the maintenance of the site and as a fee for facilitating your interaction with clients. Have a search and there might be more online in your area. Otherwise, if we're taking it off the web, it never hurts to get to network with artists near you. Look for local art groups to join and ask around there. Let your intentions for employement be known. Selling your art at conventions and local art events is also a way to get your name out and earn some money, maybe even team up with another artist and run a stall together? I think if you build a strong network around your local area, that can really help. They can also notify you when jobs or opportunities come up. Hope that helps :)