Here are a couple things that will make raft (i hope) better
No hate, just my opinion
1.Beds
2. maybe weatherchanges/waterchanges (rain, storm, higher water)
3. clothes/armor
4.doors/windows
5.fences
6. if you swim in the sea, you can see the fishes
7. add more seacreatures (turtles,dolphins,seals,etc)
8.cloth
9.more food
10.more plantable things (trees, bushes)
11.Train Dolphins to catch fish for you