Bring the peons for the construction

To be honest, there is no peons at the moment... but maybe one day. My idea was more about how to make the player know a tower is in construction and not broken. I don't have skills/time to draw animation so I simply made the tower appears slowly from the ground until it reaches its size. Who never looked at a construction site and never saw a huge smoke of earth. That's my second idea... to add some smoke during the construction.

Here is the result and I really like it :)

Tower construction