I did these nails on my friend/wifey. She likes my creations and wanted something funky on her nails to show off at work. She wanted some melons so she showed a few ideas she had for them and I set to work choosing the right colours and creating the designs from links she'd seen online.
By the way in terms of nail varnishes I use, it's mostly cheap ones like Barry M, Rimmel, 17 and Collection 2000 as they all have nice bright colours, even if it does take a few coats to apply. I also use Professional Nail Art pens to get the small details.