you really can shoot either... but i've learned that if you shoot raw you have much more control of the photo... especially once you get it into photoshop or any other photo editing program.
raw is the basic picture.. no color enhancements or special additives... like, if you shoot "B&W" the raw file should be in color and that will allow you to create a better black and white in photoshop.
i don't know how your camera works, but mine allows me to shoot in RAW and in a high quality Jpeg at the same time... so i have 2 copies of each picture.
Another good thing about RAW is that it will never lose information. a JPEG will eventually start to lose information through opening and closing and editing... until eventually its all pixelated and full of noise. You do not want that to happen to your art if you can help it.

JPEG, but RAW definitely gives the better results.

Acetate with a coating of silver halides...I suppose that would be the "raw" form on the analog side.

always RAW for me

RAW

I shoot in RAW as I like to have greater control over the individual post processing elements whilst retaining image quality.

xx