When I read the word "Nautical", I had to think of boats. Have you tried incorporating origami into your card? It sure give you a 3D image. I made an origami boat and a pin wheel to go with this card. You can find the tutorial here.
First the pin wheel is stamped with sentiment from Cutesaurus and used a tooth pick as the pole. I thought it was fun to put a dino on the boat.. I also used the PS alphabet die cuts on boat.
It seems that we are still in the winter weather although we are going towards June already.
Thank you for dropping by and have a lovely day.
Peep inside the origami boat