I like it. ;p
Here are some tips: (all my opinion)
Screen 1:
1.Stairs bugged.
Add some more details in temple. (like small stones, some grass borders oso, maybe some cobwebs, debris, rock soils...)
Don't use 1 of the same floor with these tiles.
The pillars dont match the walls. (well, it looks nice but a lil weird)
Pavement dont fit in a lava theme(my opinion)
Add some more details in the walls, like u did in the second screenshot.
Screen 2:
add gate(9471-9484) in stead of gate(9939-9952).
I also dont like the rope ladder..
Well, Ill rate a 7.3, cos I think u spend alot a time on it and cos ur a beginner.
Peace.
Shingo.