Answer 1

Just a couple things that would make your map play a lot better.  First: that tiny wall to the left of the start doesn't stop anyone.  While exploring for secrets I fell forever.  Either use a taller wall, or place deathzones below your map (or both).  There are a couple blind drops (the map has no cameras at all) like the first one onto a wooden slope.  That wooden slope also happens to be invisible.  Since there's no fog trigger, every background layer looks exactly the same as the foreground.  This means someone has to memorize the position of the slope to go fast on future playthroughs, since they can't see it.  Stuff like that.