Some visible effect damage to raft components would be nice, be able to see how damaged a part is without having to hold a hammer set to repair on it.
Also something to keep the shark at bay for longer would be nice.
Some music and more sound effects would be nice too.
Also, if we are gonna make the place feel more like home, how about some furniture. It won't do anything, just be decorative.
Oh! And being able to pick up or destroy things and get some (not all) resources back.