I like 'em!
The only criticisms I can think of - and they're minor - would be the sand eels: While the saddle hackle "wings" look nice and will move nicely in the water, they're fragile. A nip from a bluefish and they're wrecked. I'd mix some durable synthethic hair in with the saddles to give it just a bit more body and make it more durable so bluefish bites or the loss of a hackle or two won't ruin it. I'd also shorten the sand eels a bit and mute the colors to more natural colors - green over white and some solid black for nightime. Typcial sand eels are only 3-5 inches.