i get where you two are going from there, but is there any way where you can like show me how to do that? I'm still new to all this..Thanks though! I appreciate your help!
I assume you're using photoshop.
Ok, to explain for just the tree you're showing in your screenshot.
Go back to photoshop and put the tree on it's own layer.
Make sure you have the settings of your grid reference on 32 pixels subdivisions 1.
Set a grid.
This shows you where a player can and can not walk.
Next up.
Cut the area of the tree layer that you want the player to be able to walk behind.
Cut and paste it on to a layer you will call "Overs or Par Or Top layer", this layer will be the layer that your player can walk on in game
but appear underneath the object/s on this layer.
Make sense, i hope so..
So now grab all the bits on your map that you would like your player to walk "under/behind" and place them on this "Overs" layer..
Now you have a layer of objects that your player can walk behind.
Let me know if you need more help than this, but instructions will likely be inside the script you're using for parallax mapping.