Just when I thought this pink couldn't get any prettier! I'd never tried GOSH Rainbow over lighter colours so this mani was quite a nice surprise. Rainbow is an awesome glitter top coat packed with large duochrome flakies, which flash, red/gold/green/orange (check out the bottle in the above pic), at different angles. I've heard Sally Hansen's Hidden Treasure is a dupe for this awesome colour. Rainbow would definitely be in my top 10 polishes of all time list! I've taken so many photos but I still don't think I've managed to capture just how awesome this duochrome beauty really is!