street art

I have been asked to replicate this look here: http://www.kellywearstler.com/wallpaper-1-1/channels-wallpaper/GWP3417.html As you can see, it's a wallpaper from Kelly Wearstler and it cost way too much money and my client just wants to use this as inspiration but I'm having trouble deciding how...

https://streetart360.net/2016/12/23/lonac-talented-croatian-street-artist/