I may like to draw a little too much. This is how you draw a flower tattoo design and forget to go to sleep...
Collect inspiration from client. In this case, birth flowers of loved ones.
Draw each element individually to your liking:
Cut out and tape together each piece, in a pleasing fashion:
Connect with various vines, stems and leaves. Viola! Flower tattoo design.
And now I can sleep peacefully. ;)