Hey there!
Could you provide some references for what you'd like in terms style? And how many illustrations do you need? My process would be to do this by hand then digitize it, I would first provide you with some rough sketches for you to approve of then commence in on the detailing and coloring - If you message me I can provide you some *watermarked* samples not available in my profile
Anyway, I could start working on this right now, just let me know!
I'm well experienced with both Photoshop and Illustrator,
having worked for many years as an art director in ad agencies
You can see samples of my stuff in my profile
Cheers!