I did this based upon a lesson on William Powell's website. It's cheap student-grade acrylic on 16x20 canvas.
From far away it looks okay, but up close it's very messy. But the main problem is that the glazing didn't work out; there are streaks everywhere. The portion of the rocks under water are way too dark. I am considering gessoing over to re-use the canvas.
It's not all a lost effort. One day I will re-do this to the potential that is there. I like the overall idea of it all.
Any suggestions for improvement welcome.