I hate playing nice guy so I'll go directly :
1. What abgm said, since my first day, I never consider my work perfect. FYI, my first map got rejected like a sweep of second in front of my eyes. Ask old moderators from map Section (Orcnet or Vengeancekael), I never said "this is my first map so please don't reject it.", all I ask them when my maps rejected is "what I can do to get them approved here?" (And yeah, I'm too lazy to fix it due to heavy damage to revert things back, so I'll just let it stay rotting at Needs Fix.)
2. THW is not EpicWar, we have a minimum and we are making that to ensure decent quality around here, for the least we're not as strict as wc3c.
3. All maps must have decent balance (especially Melee and Altered Melee).
4. We have tutorials and guides here, ask at WEHZ for guides or refer to our Tutorial Section.