I decided to go for a watercolour effect by using distress markers and spritzing the images before stamping.
The bird stamp is old one - I think it might be from Pink Paislee and the music background, frame and flowers are from Kaisercraft. The sentiment is from Simon Says Stamp - Flower Friend.
ETA: I have just discovered that Virgina of Yes, Virginia fame has a fun new challenge and this month's theme is watercolour. I hope this technique counts.