I used four colours and a makeup sponge to create the gradient base. The pink polish is Strawberry Margarita by OPI, the coral polish is Access All Areas by Ciaté, the orange polish is Speed Dial by Ciaté and I don't actually have a yellow bottle of polish so I used the polish from my Wah London yellow nail art pen. I drew the palm trees using my black Wah London nail art pen.
The best way to create a gradient like this with four colours is to start with a white base polish. Use the rectangle end of your makeup sponge and draw a stripe across it with each polish so you have four different coloured stripes on your sponge. Then lightly keep dabbing the sponge onto your nail until the colour gradient transfers onto your nail. If it is too light just apply more polish to the sponge and dab again. Draw on your palm trees using a black nail art pen and don't forget to add a big yellow sun setting behind one of the trees!
Let me know if you like this design or if you have any design requests by messaging me @KathleenEmilyy on Twitter and Instagram!