Let me start off by saying Less is More. The sheer amount of items on here is actually a bit overwhelming, in my opinion. The tileset is a little foreign for N, by which I mean it doesnt really suggest a flow. Its almost difficult to plot a course of action without gaining unneeded frame counts, and if you switch FbF on to plot it out, you're likely to mess up the execution.
Most of the gold was unnecessary, and where it was placed, it was too inconvienent to get without disrupting some of the maps genuine aimed flow.
The laser drones didnt fit the map, as such enclosed spaces offer easy elusion. The Gauss Turrets at the top also cluttered things up without adding sufficient challenge. The ones on the bottom actually got me a few times.

3/5 From me. Fairly average, but I know you can do better. I hope my comments helped in some way. I'd like to see more of your maps.

~Mosh