Flow is pretty good (it's very open), but the texture choices make my head swim. Keep your eyes closed, and this map plays pretty well.
A port of an M2 level, that was itself a port of a Nintendo level. Pretty unimaginative layout... this version has monsters and powerups, which the M2 version didn't have.
A wheel within an octagon... the textures hurt my eyes too much to figure out if this is a 5D map or not.
A medium-sized generic level. There are open areas and enclosed spaces, and multiple tiers, so most play styles should be accomodated.