Author, writer, marine artist, charter captain, lure manufacturer, ind. consultant
The lure in that last shot is reminiscent of the bigeye lures we had a great deal of success with back when I was a youngster and was rod and reel commercial fishing 'eyes for the sushi market.
We seemed to have more success with shorter versions, though. Me, I'd cut that sweet puppy down to 8-10" overall, clip a couple down on the short corners (bigeye are basically deep water denizens and when they come up they come in packs and tight to the boat) and hang on. Again for me, big azzed forged hooks or Hays' or circles nowadays and all-black skirts, day or night. We used to have our best success trolling tide changes at night (yup, at night) and black worked best for us just as it did in daytime.
Those lures worked very well for us, but (as noted in Bigeye Troller's Bible book) as soon as we started shortening the width and cutting down on the number of baits on those original huge and heavy metal GBFT bars - we used to have to rig them with natural squid, herring, macks and such - and rigged them with 8-10" feathers or (better), strips of shaped truck inner tubing with the lure chasing and trolled four of them we started getting a lot more 4 fish multiples. That meant a lot more $, so that's what we stuck with. That was the begging of me spending a lifetime messing with spreaderbars.
Big Senators at first, then when our meat sales provided the cash, International 80's, 100 pound string, two bent butts and two straights, fish fought out of the rod holders with golf balls dropped in them so that they'd swivel. Usually just two of us. Never stop the boat, fight 'em one at a time, gaff, boat, then go to the next one. Lost very few fish, but if we'd been using circle hooks, I doubt that we would have lost any.
And here's the real mind-bender...we caught three swordfish night trolling for the tuners! Sounds crazy, I know, but it happened on three different nights...just like the tunas, on good tide changes.
Anyhoo, like I said, that looks like a real good bigeye lure to me.