If you want to evoke passion in your bedroom but the bright colors are a little too much for you, there are ways to have a decorative passionate bedroom in more subtle color schemes. In a cream colored bedroom, you might try a Vettriano piece over the bed, like "Dance Me to the End of Love". This image of a couple dancing can remind you of special times with your partner, something that we tend to forget when busy with everyday life.
If you prefer a darker color palette for your decorative bedroom, you might try pattern or floral art on a dark background to hang over the bed. A white mat will help the art to pop, and a dark brown or black frame can help the art to blend with the rest of your furniture and accent items. This style of passionate bedroom feels elegant and expensive, but you don't have to spend a lot of money. Choose the artwork and accent items that speak the most to you and then add additional accent pieces as your budget allows.