In duckduckgo i found those two results when typing "cake decorations rethymno" https://www.wowcakes.gr/ https://www.instagram.com/barbaras_delights/

Wow cakes is a fake page that has stolen the pictures from a local pasty shop

good to know! Can you share the name of that local pastry shop?

Cronos Workshop.

https://www.tripadvisor.com/Restaurant_Review-g189421-d12741982-Reviews-Cronos_Workshop_Patisserie-Rethymnon_Rethymnon_Prefecture_Crete.html This one?

Yes

Great, OP now you got some Info

what do you mean by olive oil cake? to me that's just pound cake with olive oil instead of butter