I think these nails are so beautiful!
They could be inspired by Frida Khalo or as my friend Mimi said they look like Desigual nails.
For first apply base coat to protect your nails. Then take three different nail polishes to create shapes of roses. On each nail create one rose shape in every colour, let them overlap each other. Now take lighter or darker shades of your chose rosy colours and with toothpick or with small nail brush create leaves of roses, so inside of rose. For the spaces wich are not cover by roses use green polish and fill these spaces to look like roses are still on bush. You can also paint your ring finger with black as I did. As a last step apply top coat to seal your desing and add a shine.
That´s it! You have so pretty nails, now!