Thank you, Jack, I appreciate the kind words. That definitely is a Fresnel lens (I have another, much closer photo of it in my photos); fortunately they let you go up in the lighthouse and get right up into the lantern room.
I've been experimenting with editing in Darktable, and I can't tell if there's more to be had from this shot, or if this is a "garbage in, garbage out" situation (i.e. the shot doesn't have a good composition). Love some feedback and things to try.
The pelicans and seagulls came in for a meal at high tide in Taft (Lincoln City), Oregon. I spent a bit of time playing with different editing techniques. There's more to be had out of this shot, though.