here's my set-up i have 3 chinese fire belly newts in there
for the land portion i use a turtle dock as it maximizes water volume while also giving a nice large "basking area" some people use a glass, plexi or plastic shelf siliconed into place, or use a method like yours where they pile up stones or have some decoration that breaks the surface of the water. this is more naturalistic but gives less water volume. which method you use is personal choice although most people dont use the "glass divider" method as fire belly newts only need a small area out of the water rather than something like a 50-50 tank
to be honest your set-up as it is sounds good although i would give the advice of (if you already havent) getting some aquarium grade silicone and fixing the rocks into position to avoid accidents.
also i dont keep the light on as i found out that it gets too hot and raises the tempreatures too much