>if you can port this game to Mac it will be good.
Got a mac version to a few testers, so soon.
>I'm sure that you use real trees reference
To a point, most of the trees are real, bushes and flowers not so much, ill see what i can do
3 & 4. More content coming soon.
>Can we use this game screenshot to be base on concept art or painting/photobashing in commercial purpose?
Absolutely
>How can we delete something
Right click on an icon to delete all of that type or point at something and press delete
For the trees, the collider that detects the delete is usually the trunk, so make sure you point at that, for everything else its the center of that object