There are 2 main principles that must be known and understood in the nature of Art in Heaven.
#1 Mandalas are everywhere (including nature). They are spiritual and are meant to focus spiritual attention.
#2 There is a Design to Nature itself that can be found here on earth. Mushrooms look like Jellfish. Veins in leaves look like branches in trees look like veins in your arm. Sea shells designs can be found in plants. There is a repetition of patterns observed in nature.
God gave mankind itself a spark of creativity. Sometimes people draw spiritually and create things found in Heaven (like our cultures). Other times they veer from that path and create something different entirely (like Jackson Pollock).
Makeup and fashion also follows this pattern.
We paint what we see what we are.