ZEBRAS OP ART

The other day I went to the zoo .While I was observing the zebras - some of them came closer to me -like they just wanted me to take photo of them .
Later at home I applied a two color filter on the photo - and i was very excited as I discovered the nature 's tromp d'oeil . Two zebras are standing close to each other -whose head can be seen well ?
Zebras have a natural op art costume -and for that they have a retro feel when we find them on the designs .
Yellow t-shirts ,zebra clock and a lots of other of my items are bearing this zebra design .