Looks like a first class job!
Actually, I expected a camo paint job. That's what most duck boats get in my neck of the woods.
I've been thinking, I do think you should have some form of auxiliary propulsion, and I can certainly understand your reluctance to use oars. I like rowing but my wife flat hates it, and can't understand how anyone could enjoy not seeing where you're going! A canoe paddle would not be much use, but a two-piece kayak paddle would work well in that little boat, and store inside easily. At just over three feet wide and with a tall center thwart it would work well enough to get you back to the ramp when the battery goes flat.
Don't drop your shotgun in the water!
My neighbor dropped both his in the drink last winter. His highfalutin' under/over actually froze up ( temp was in the 20's) but his Benelli still worked, which was just the opposite of what we expected to happen. By the by, he bought a used plastic canoe to do what you'll be doing in Lonesome George. Your boat is far superior for the task, and easy to put in the back of a pickup!