I like the second one better... but yes, wood would look much better... or how about some sand? Or make a simple boat, put it in there, go to the beach and set the boat in the water... maybe a wooden toy boat so it looks like you're sailing the ocean... or even a piece of wood floating on the water and you can add a simple sail on it. Ok my mind is going crazy lol! I would love to photograph my pictures at the beach, but wow, that would be a headache for me and not worth it because my items are not nautical themed.