I enjoyed it. You don't need to put yourself down about your game, its a game jam. Projects don't have to be good or even finished. They just need to know where they are headed. And yours knew where it was headed. Good job.
If i were to suggest a next step for making the game more user friendly, i might suggest a little floating marker pointing you to the nearest tree and a little counter saying how much wood you have. Finding those last few trees for the final bridge whilst having to go back every time and check i had enough wood yet didn't feel the greatest.
Otherwise, as i said, don't put yourself down. This is a solid game. Great job!