Big ol' thanks to  silverscarf for bringing life to a character concept I've had in mind for years now.
Be sure to favorite'n comment on his post, he deserves all the love

Character lore on her Clothed and Shaded version
Rules of drawing Isabella:

1) The design of her prosthetic arms, straps and backpack battery unity are not wholly important and leave plenty room for artistic license. What IS important is how they physically interact with her naturally limbless feral snake body, as detailed in the following rules.

2) Arms will always mount to the sides of her body as if they were natural limbs, mounted upon the body straps if they are visibly present.

3) The straps themselves go underneath any and all clothing, and only need to be drawn if there will be a bare spot on her 'torso' at shoulder or bicep height.

4) Shirts will adhere to her prosthetic arms and shoulders as if they were natural, normal limbs.

5) The Backpack Unit will always be visible on the outside of any and all clothing unless specifically specified otherwise, regardless of logic or realism.

6) The Prosthetic unit as a whole is removable, reverting her to her 'natural' form. However this is akin to "Slipping in to something more comfortable" and only performed when alone or in company she trusts. There is a series of surgically embedded contacts in her back where the Backpack unit rests acting as her connection to it, visible only when the unit is removed.

General Rules: Isabella is a kindhearted sweetie. Happy to help, very reluctant to harm. She is not the kind of snake to 'seek prey' (Outside of the bedroom) and does not engage in Vore related acts.