I\'m afraid that the death-realm is not as straightforward as it could (and by all means should) be. If you fall off that twist of rock, which is a very likely scenario, especially for a newbie, then you fall down to the blackness and pillars of cold rock below. No amount of contrast increase will let you see anything down there, and after wandering down there for some time myself, I have to say that 2XUnstick is not a very straightforward route, as it were. As for the path itself, unless you know the way, it is very difficult to see/find out that the path turns around to the left at all, since the tile texture ends, giving way to rock. What is more likely is that you will fall off the blind edge just beyond the arch.
I think the death-realm would be a good idea with a little restructuring and flavor (maybe depending on your religeon, for instance). More flavor would help a lot of the seemingly \"empty\" areas. Just my $0.02.