Roses were on my to-do list for a long time. I was inspired by this tutorial, check it out! This is my first attempt and it's not too difficult actually. I used nail polish to create the roses (Mod About You and Flower to Flower from OPI); my experience is that it works fine, just keep in mind you have to work fast 'cause nail polish dries quicker than acrylic paint. If you want your roses to look more 3D I suggest using acrylic paint.
Thanks for watching! :)