In recent years, nail design and art have exploded. What was once an afterthought is now a space to express yourself with rhinestones, pearls, optical illusions, technicolour French tips and more. You name it, people have done it. But what’s on the cards for this year? From Bella Hadid’s favourite Mei Kawajiri aka Nails by Mei, to social-media sensation Park Eunkyung of Unistella, we asked the experts for their top 2021 nail trend predictions.