Yes. This is just peel and stick. Will work on smooth flat surfaces.
Yes. It comes off so much easier than any paper I' ve ever put up. There is no water at all . This paper goes up like contact paper but without the stretch. It's easy to re position but once it's down, it stays in place very well. When it comes off though, it all peels off . No little pieces left, etc.
You can put this in your bathroom but I would not put in directly in the shower area. Depends on the ventilation in your bathroom if it gets any time of ventilation.
Yes, I would think so. It sticks really well.
leave are 3 to 4 inches in some areas
Description says GREEN/WHITE. There is nothing Gray about this paper. Background is white. Leaves are three shades of light, medium, and dark (almost black) green.