I would suggest adding a feature when you mine floor/walls/nets/etc... with an axe, you actually get the item back. This might be a good feature because sometimes when i place something wrong i have to chop it and then make another one of that item and that means i have to lose more reasources, That would be really helpfull. The other thing is more graphics options. I dont have a good computer which means i have to run a 600x400 resolution. It is really hard for me to play so adding more options would really mean something to the gamers out there. And maybe if you have some time add like some more fish. Right now theres only 1 fish type and thats kind of boring... but its something. You can also add like an automatic machine that picks up planks/scrap/leaves automatticly for you.
Sincerely
Vladyplayz