This is what I have on my nails right now, it's really easy so I thought I would share it with you.
Step 1. Always start with clean freshly manicured nails and remove any grease from the nail plate with nail polish remover
Step 2. Apply your favourite base coat to protect your nails and make your manicure last longer. I am using O.P.I Nail Envy.
Step 3. Pick two nail polish colours, they can be contrasting or complementary. You can even use just one colour. I have chosen Orly Purple Crush (pink polish) and O.P.I Fly (blue-green polish).
Step 4. Using a thin nail art brush and a black acrylic paint brush two stripes onto each nail in a cross shape. The crosses can be different on each nail or the same if you prefer. You can use black nail polish for the crosses if you have it. If you want really crisp lines you can tape off your nails in the cross shape. I don't use tape because your nails must be completely dry before putting tape onto the polish.
Step 5. Apply your favourite topcoat and enjoy.
Don't worry if your crosses don't look perfect close up, I always look at my nails from arms length and if they look good from there I'm good to go.