I really like your Ocracoke 20. It's among the best looking 20' walkarounds I've seen.
For your companionway door, the simplest solution would be painting/gel coating it a different color, perhaps also adding some vertical color detail, to break up the mass of white there.
Another thing that comes to mind is installing one or two flush, narrow windows in it, in vertical orientation over the curve down to the same height as the bottom of the console bump out, in same tint as the windshield. Allow more natural light in to the cabin and break up the mass of white. A difficult detail to build, but if there's a home builder who can do it, that would be you.
The last thing that crossed my mind is laying a wood veneer on it, matching other wood details. Of course this is also difficult to execute. Both a wood veneer and windows wood look great!
I'm looking forward to seeing what you come up with, you have great design solutions that work well from the details to the whole.