Dem poppers look good dude!
A couple things: You can hang that stinger back a bit farther to make a longer fly. Also, if you tie the materials and stinger mono away from the bend of the hook, you can snip off the hook up under the popper head. This will keep that little curve from snatching your tippet and fouling your fly.
Lookin good though. Maybe we can have a "popper off" at Sekiu.