Yes, the 5 first map screenshots look really good while the last one (Maze3 by Nickliff) is really crappy and doesn't show anything about the map... Furthermore...the fact you mentionned it doesn't really work for sure will discourage any one here to play it ! ;P
It Does Not Mater ...
It does not matter how honest you are about a bad map, people will still download it :]
Great examples are:
For sure people have to download the map to have their own opinion... and then remove it if the map is really bad... That's the way I test map... And yes, honesty doesn't matter here... blah !
that maze3 map makes me want to make a q3 map now. :P