Reminds me of something I saw in Europe
Why do English pubs always feature these drab paintings? Not to say your is that drab but it does pose a nice transition from the darkness/lightness theme.
Like in a "Sea of hopelessness - there exists a small glimmer of light" sorta theme. It's sort of a means to encourage old salts to tell their tall tales.
Was your grandfather an expert fisherman? Was this based on an actual expierence?
It's a bit small, even if I click it. Mind re-uploading a larger version so that I may see the details? Cause I'm sure you worked hard on this.