My game needs original assets, I'm looking for ideas and support on making the such

Hello, I would like to add more of my own elements to my game to make it original.

It is an f3x (btools) sandbox and doesn’t use any original unique assets besides a single update board, I think people do not enjoy my game due to the like ratio and how it is unoriginal.

Me and my dev team have came up with a few:
  • Map voting, which I cannot make a vote system.
  • A constraint tool such as ropes, welds etc. which is difficult.
  • Custom btools plugins or new tools, I do not know how to make the such.
  • I have personally thought of some sort of block coding tool like used in another f3x game I played.

I’ll be honest, I am terrible at making my own assets BUT if I spend hours on it I have been able to do it before.

This is the game in question.