I love seeing so many newcomers put out some real quality first maps, really puts my firsts to shame. This is just an all around solid map, with the lava pit rune button puzzle being, not unfair but maybe turning the lava into slime or something?
Either way great work! You have some serious natural talent.
First run demo (up until the lava pit), hard skill: http://quaketastic.com/files/demos/orl_pillars.rar