Just one sketch" course, but not quite.
I started off my masking off a sheet of paper, leaving a circle in the middle. In this circle I misted with glimmer mists, leaving a pearlescent sheen. I then inked it in a dark greenish, very lightly ;-) making it a bit darker round the edges, especially at one side to try & add depth.
I then dunked bubble wrap in the same ink & stamped it hard in a line (you can just about see it in this photo under & behind Zacks photo).
I cut the letters using circular nesties out of shiney iridescent paper, I also used them to cut the photos into circles. After everything was stuck down I added the journalling in brown pen.
I think it definitely conveys bubbles, lol, & though it doesnt look anything like my original page from my sketch it most certainly is based on my sketch.