Hi ! :)
Yea I was thinking about the 2nd option to place houses and objects faster !
If you continue working on this project I will come back for sure to see what did you make :D
For the type of worker you mentionned I don't think that a great idea bc you can upgrade windmills by yourself it's just hard and long when there is a lot of buildings to lv up, so the best is to : auto upgrade or be able to upgrade multiples building who are the same type of build.
The font is a bit hard even it doesn't really bother me , for the title it's fine but for long text it's a bit hard so it's better to change to a more readable font when there is a lot of text.