I find it unusual some soldiers have lighter skin.
Since the gatherers and miners, all looked the same.
Game was good and simple.
It becomes hard after 5+ waves then it becomes super easy once you manage to stabilize and gather enough gold.
You need to get woodlings according to priority.
Miners are the most important in the game.
Second priority is gatherer otherwise your units will die of starvation
3rd is the soldiers
I would try to get 50 miners as fast as possible then 10 gatherers
Then get 50 soldiers
Finally, get 10 more gatherers.
In wave 20 you need to constantly spam warriors and fully upgrade them.
The reason I set a limit of 50 soldiers, 50 miners and 20 gatherings is due to lag.