New Project - Idea Stage

I am working on creating my own hand applique project/pattern. 
I found this free public domain Celtic image and thought that would make a great wall hanging or a medallion centerpiece for a quilt.  

The Gold fabric is from a line called Stonehenge 
and the Celtic fabric my mother purchased for me overseas.  

I am going to use the gold for my backround and the solid blue for bias strips.

   

Here is a closer view. 

Opinions and suggestions are welcome :)