I'm experimenting with a daisy motif and glass medallion insets. I made the shoulder pad larger and lined it with chenilled bamboo. Very soft and comfortable. I put the daisy motif onto the strap. The pictures don't show the gold iridescence of the beads. The beads add some weight to the design. The bag features a velcro side closure for ease of loading the water bottle.
Since folks will likely want to adjust the position of the water bottle to their preference, the next one I make will have some kind of strap length adjuster.