Of the classicists, I love Lawrence Alma Tadema (one painting, Spring, is at the Getty). His ability to render detail such as marble and flowers can really only be appreciated in person. His models are firmly victorian, but his idyllic scenes of ancient life are paintings I love.
Here is an example of his work with flowers, the image is huge, as is the original painting. He apparently had huge flower gardens at his home in London and he would have basket upon basket of roses delivered daily while he worked on this painting.
Alma Tadema's The Coign of Vantage hangs in my bath
As does Gerome's gorgeous The Bath and this lousy image off the web does not do it any kind of justice, if anyone comes to visit me in SF, we'll go to the Palace de Legion d'honour and see it in person, it's a favorite museum for me in a spectacular location and I am anxious to revisit it and see the new DeYoung and the Asian in the old Library building. Come see me in SF and we can be tourists together!
My knowledge of art you can put in a thimble, but I love looking at it!