I agree with Michael. This is no Waterhouse.
Here is Waterhouse’s “The Beautiful Woman Without Mercy”:
Pre-Raphaelites tended to dark backgrounds. Golds, yellows, and greens were prominent, but usually to highlight the subject, making it stand out from the blackness. Waterhouse’s “Hylas and the Nymphs” is a good example, which I didn’t post here (It might offend Paul).
My guess is that your painting is a modern imitation of a Pre-Raphaelite. Maybe an illustration from a fantasy book. If it dates from the 19th century (sometimes they did have light backgrounds), I doubt it would be by a painter whose name you would know.
