That looks a lot like a L'Oreal glitter nail polish I have. I'd definitely go the nail polish route, rather than trying to apply loose glitter. That seems like it'd be a huge PITA, and a mess too. It's pretty easy to do with the polish though... I do that "look" somewhat often.
And I agree, glitter polish is horrible to get off. I learned a trick on Pinterest though, that works like a charm. You soak a cotton ball (or part of one, I usually tear them in half to do this) in nail polish remover, and then wrap with foil. Leave them on for a few minutes, and it comes off super duper easy.