All you need is..
A clear nail varnish
White nail art pen (you can buy these from ebay)
A peach/yellow nail varnish
First thing's first, apply a basecoat to your nails and let it dry before starting your daisies
Next using a peach/yellow nail varnish, I used, Rimmel Lasting Finish Fruities Nail Polish in Apricot Punch (or any colour that you like) dot a couple of spots onto your nails, I used the tip of my white nail art pen to do this, this will be the middle of our daisy
Next go back round after giving the middle dots time to dry and then apply 5 little dots using a white nail art pen around the outside of the middle dots.
And finally finish them of with some clear nail varnish to seal them in!