After the basecoat paint your nails in a white colour. Let it dry completely, a topcoat will speed up the process.
Essence floral Grunge nail polish (The Pearl) - 02 Lily Bloom
Take a striper brush and black nail polish and make a curved line (from right top down to the left where your natural tip starts).
Divide the tip by using striping tape.
I chose to do an ombre (light to dark) on the free spaces of the tip. I used different nail polishes for each stripe but of course you could just as well use a dark colour and white nail polish and mix these yourself to a kind of ombre (different shades of one colour).
Remove the striping tape.
Fix imperfections (I had to repaint my black line) and topcoat it.
For each tip I used a different colour (love colours!)
Have fun with it!