Graphic T-shirt Artist for on going project

Hi there, We have a T-shirt and clothing brand called Life Well Lived — www.lifewelllived.co.uk. We have an in-house artist who creates our current designs, but I’m looking for someone to recreate the attached style and work with me on developing our new Cali Collection. The idea is old-school California surf/adventure graphics, with Albert Einstein at the centre of each design — surfing, hiking, paddleboarding, sailing, off-roading, relaxing in a hammock, etc. You get the picture. The artwork needs to be suitable for 4–8 colour screen printing, not DTG or DTF, so clean separations and a proper print-ready style are important. This could be a really fun project, but we need to move quickly. Please let me know if this is something you can help with, along with examples of any similar work. Many thanks, Alex