I agree, it's a nice shot but there isn't anything to hold the interest, I am squinting to see the boats and beyond.
Having grown up around Langstone harbour/backwaters of Portsmouth, although it can be quite a spartan landscape, there is just such a lot of stuff ! in and around the water's edge that I am now (shooting seascapes over here a lot) jealous of!
Mud! breakwaters, groynes, rotting wooden stuff in the mud(!), concrete/stone structures, jetties, bridges, boats, ships, bikes, trolleys, birds, garbage, bait-gatherers, meandering channels in the mud(!), seaweed mounds etc. etc.
I'd consider trying to use something like that to help frame things and provide a subject to counter the sea/views beyond - dawn/dusk light is a huge help too if you can manage it, with the shadows/magical light. have fun, it's a great excuse to be around the water whatever happens!