Digital illustrator NO AI organic graphic design only

Hi, I have a project that I’ve been working on and have been wanting to create a unique alphabet mat + individual alphabet letter posters which will be part of my brand. I know what I want for each picture and can provide the details but I’d like potentially a watercolour brush look however I’m open to some ideas. I have attached a picture of the mat I created with ai but it’s not what I want and I don’t know how to utilise ai well either so there’s that. I feel like it has the ai feel and look and that’s not what I want it has no originality. Besides my logo that’s mine. I want the images illustrated and maybe with some character and flare not boring and standard if someone has that vibe they can come up with something. The watercolour image is an inspo The mat should be at least a3 and a4 size but it’s digital? I’d assume I can change the sizes for printing. The letters I’d like in a4 Please make an offer with images of your art style and don’t make and offer if you only work with ai design and don’t illustrate yourself - thank you