Is There a Difference Between Islamic Art and Cleric Art?

For me, it was, e i was reading a book which was about celtic art. And i found a lot of similarities between islamic art and celtic Art. So first iti started with just drawing some lines, and then turning these lines to like circles. Then little by little, i learne that there are many interesting things happening here. It was not like i worked on the game full time for seven years, but the first idea came like, seven years ago. During these seven years, i did so many experiments withit. But  then i removed a lot of content because i thought, like, this is too much.