I suggest you PAUSE this video and CLICK HERE to SEE A MUCH HIGHER QUALITY VERSION of "SeaGlass".
& CLICK HERE to see a comparison of a SOURCE VIDEO FRAME & FINAL RENDERED FRAME.
These are salmon swimming upstream to spawn. Shot at the HIRAM M. CHITTENDEN LOCKS fish ladders in Ballard, Seattle, WA.
Uses many paint paths, some using brush displacement to push the pixels along.