I have no idea. But it looks somewhat Witco-like to me. Considering it’s on an island belonging to Europe’s mainland Tiki-mecca Spain, which blossomed shortly before the decline of Tiki in the seventies, this could easily be from that period. The major property developement in this place dates back to that era as well.
I don’t mean there are Tikis anywhere in this picture, but it reminds me of abstract late 60s and 70s works by William Westenhaver, as seen on page 216 in Tiki Modern by Sven A. Kirsten. Any hints?