That's a sweet collection you've got there. Add an Eskabar to the mix and you've got what I consider the perfect basic Becker collection. All your bases are covered with those four Beckers. I like the texturing job you've done on the scales. It looks very low key, but still grippy.
The cord locked lanyard setup like you've got is a good idea as well. I think I'm going to get a few and try them out for myself. I've been trying to figure out how to keep a lanyard handy, but still out of the way. I usually don't care for lanyards hanging off the butt of my knife, since I find the loop catches on things a lot. My solution was just to keep a spare bootlace in my water bottle pouch to make a field expedient lanyard when I needed one, but your idea is better. It won't get snagged as easy, yet is still very fast to deploy.