I think is better to wait until some earlier alpha than 0.52 leaks with those maps, because these look advanced.
The best method is fail and trial, make maps until you dominate fully the VHE (Valve Hammer Editor) or warcraft (Or worldcraft?? I forgot the name. If you using a older version of VHE).
Also, where you get that last screenshot? Looks in high quality and different to other i see.