Always remember - Follow the Yellow Brick Road, it will lead you to the Emerald City and OZ A very nice place to repose. Trust me on this one, I live there ............The Lion...................... MY GALLERY - The Magical Mystery Tour
I think this should be 'Labyrinth'! Least, that's what it looks like to me - and not one of these namby-pamby labyrinths on a neat, single level, either, but a proper, challenging, multi-level mess. On the other hand, maybe that is necessarily 'Fanciful' so it might be best after all...
The textures of this look like polished stone, but it is really the sense of all those interlocking tunnels - like a substantial complex of caves - that make this stand out for me. At least, that's what makes it stand out from _your_ other work, which isn't quite the same thing given your standards.
The only thing I don't like is the frame, especially given the way I'm drawn to interpreting this. Still great work, though.