Art Quilt Group Challenge

I just joined a local artist's group. It is so delightful to spend time with kindred spirits!!

The challenge this month was to create an 8x8 block in oange, yellow and turquoise (OYT). Here is my third attempt at a block for the challenge. With little restrictions, it was tough to know if I should create a complete mini art quilt or something that would be embellished or modified as part of the larger group effort. My other two OYT blocks are here. This one was my favorite bcause of the intensity of color.

In the end, the group decided to not combine the OYT blocks into a group quilt so we were free to take our blocks home. What do you think? Should I make this into mini art quilt or into ATCs (artist trading cards)?