Kyaaa! Found it!
The tinsy red 2's on the joggers, and the white 6 on the man with white jeans at
grid 7,7!
I found it after 10 minutes or so but when I zoomed out to find the coordinates, I lost it and then it took me 20 minutes to find it again ._.
Clever little challenge, had me fucking scrutinizing all the little flecks in the sand. Still can't find Waldo +1