A good question to ask your friend would be: For what purpose is she going to use the photos that she takes of her artwork?
In other words, is this for a big printing, for digital viewing only, or is it for personal record only,etc..
That would help answer a lot of the other questions that I have as far as DSLR vs. Point&Shoot or Mirrorless, megapixels, sensor size, resolution, and all of those geeky questions.
Also, what other things would she be looking to photograph? Are they are a lot of special effect scenes, such as long exposures, or low-light situations, or would it be mostly capturing everyday life?
If some of these questions would be answered, then I could do a little more research!