Although it looks very purple in the bottle, Purple Ash is much browner on the nail. I love this shade though and it works perfectly with the glitters in Roman Candle. This combination works really well and looks gorgeous, I can see myself getting plenty of use out of Roman Candle. The mix of different colour and shaped glitter makes it really stand out and does remind me of fireworks.
Have you tried any of the Models Own Fireworks polishes? I am really impressed with this one and can't wait to see what they will bring out next!