Lvl planning

Here is my basic lvl design, i put some color in it and made it look stupid, but its easier for me to see where everything's at. Im not going for anything too fancy because i actually want to complete this thing by the end of the semester and im just starting to work on the propps.
As i look at it now, the hardest thing will be making the boundaries  of the lvl, i see it happening with the fence but on the other side i'll just have to put some trees or something... and rocks and who knows what else... I really want to put some trees in my level, but honestly, I dont even know how do u make them, the crown of the tree that is... i guess i can throw some alpha planes crossed, still need to look into it. So yeah, here are the basics.


Propp list so far:

• gazebo
• carrots
• soil for plants/ground in general
• mushrooms
• trees
• decorative rocks
• all sorts of plants (modeled)
• grass to populate the ground

pffft perspective? yeah right. So im deciding between these two, the main difference is the roof and stairs.