Very nice tutorial and figure!
Just to add some further hints.
The raindrops go through the camo pattern. Most of the time they run vertical, sometimes the run horizontal. I've even seen samples where vertical an horizontal raindrops appear on the same piece of clothing where different pieces of fabric are used. You can have vertical raindrops on the main body and horizontal ones on the sleeve (if sleeves are different pieces of fabric) or on pocket flaps.