I struggled with this one --- somehow, the color choices didn't resonate with me, even though MOST of the,w ere used in other blocks. I suspect the black and gray are the culprits, although I am getting a tad tired of blue and orange! LOL
The color challenge was posed by Judy Laquidara  and VIcki Welsh  back in the beginning of Septemebr and is based on a photo of a mineral spring at Yellowstone National Park. All fabrics, beads, threads and laces are from my stash. The block grid was a slightly modified block six  from the "I Dropped the Button Box" over at PinTangle. AS usually, I added a strip of lace, some crystal beads and my "signature" chains stitch to tie the series of blocks together.
That white thread lower left --- a stray --- don't know why I didn't see it before!