I don't really like the changes you've made to the layout. Those huge circular structures now make low entrances to the flags alot tighter, thus making it a bigger pain to get the flag. (I suppose the wider mid entrances will compensate for that.) The holes in the upper route where you can access it from mid just removes some of the purpose of the middle tunnel. There is no point in those bunkers.
Aside from those, the scenery placement looks really sloppy here.