Wall Decals Butterflies

Im painting the walls a lilac/lavender/purple and my bedding will be purple, beanbag&deskchair will be purple, drapes will be purple, lava lamp, and storage bins will be purple. Since purple can be a depressing color, I want to add some pink into the room, which will consit of drapes on my closet (long story), lamp, decorative throw pillows, sitting chair (extra chair at desk), and a bedside rug. My grandma says I should just do all purple. What do you think will be a good color combo, and all the pinks are light pinks which will be found on my bedspread either way. So how do you guys like it?

Oh and, I am putting up framed pictures of my friends and butterfly wall decals. Im also doing my name in wooden letters on one of my walls. Any more ideas for decor?

P.S. My wood is all a light chestnut and my closet door (one that isnt broken, and regular door, are white)