Original pattern is named Solstice Sun Rising and has an interesting center.
I crocheted an original center and then modified it and used the second one about my block #6:
The previous blocks from that project:
5. UnBroken Hearts Granny Square Crochet Pattern - #5
4. Еxhausting Family Square: Block 4
1. Tamara’s Kismet Square by Jessie Rayot - Block 1