(written from a Production point of view)
Elaine Sokoloff is the artist who worked as scenic and graphic artist on Star Trek: The Next Generation and provided the three paintings for the third season episode "A Matter of Perspective" in 1990. She received credit in the end credits as "Art Studio Paintings By". She also provided artwork to the episodes "The High Ground"  and "The Most Toys". 
Beside her work on Star Trek, Sokoloff worked as scenic artist on the science fiction film Trancers II (1991).