Good idea for an incremental game. I can see that game being pushed further. I think it can be a good idea that instead of a top down view, you have a side view, so you can see the horizon, see the sun coming, see if there are clouds, if it will rain, etc. and use those informations strategically.
It would be a good idea to put the pause on a key (space bar for example), so you could pause quickly while managing your worker instead of having to reach the bottom right of the screen. (espacially if you play at x10).