Unfortunately, as with all worthwhile fashion fads, yellow nail polish is difficult to get right. It definitely looks better on darker or tanned skin. I'm personally really pale (milk-bottle) and so the colour wasn't as shocking on me as I'd have liked. Application should be careful- it can look streaky, so I'd recommend a third coat. Also, watch out for the cheap ones- some polishes can leave nails stained. Finally, make sure your shade is as bright as possible- this is probably the one and only trend where neon is acceptable. When done properly, its the perfect summery look.
Let me know what you think about yellow nails and if you've tried out this trend!