Medical illustrator

Hi
I coach a lot of online programs and I use images during my coaching
I have a great many stock images that i use in my coaching that I would like redesigned
Attached are two example images of stock images that I would like rebranded - also attached one image that I have designed by a previous illustrator that is too busy right now to take this project.

I am not sure what price to put here, so I have put a price per image but would also like a price per 10 or 20 images as I probably have about 50- 70

The "lipolysis" image is the simple style that I am looking for in all my images, so they all are branded the same way.

Ideal if you are used to medical style illustrations