Congratulations to the winners, excellent images all of them.
This was a great challenge.

Lown #17 - 3 points
orbital #5 - 2 points
Garmac #4 - 1 point

Honorable Mention (probably they are too much but I really like them all)
rj110 #28 - very difficult and excellent modelling work
dhama #1 and grafikeer #8 - beautifull mixing of architechture and landscape
Thandaluz #30, Quest #19, gregsin #29 and dan_whitside #32 - excellent work

It has been very difficult to chosse the top three, and even the honorable mentions.
I think that a lot of images are great by the modelling work and others by the "artistic" value (composition, ambience, idea or original design, etc.). Some images that not only used bryce primitives but also default bryce textures are very good ones. In summary, this was a great challenge, so congratulations to all the participants.
 

Thanks.
I´m working with the program, making some trees that could be interesting to other users.
I will see if they are to heavy. To give the settings can be a good idea. 

Fantastic work, and great textures also.

ICM: that looks great and very creative.

This time it will be even more difficult to vote only for three, and still waiting for more entries like yours or rj001´s work  :ohmy:

Well, my entry to the architecture challenge is based on a photo. I think it´s a good method to practice in bryce. I have made some other images also based in pictures or photographs, for example, my first post at renderosity which was based on a photo that I took of a square near my son´s school (OMG I have seen that it was 5 years ago) :scared:

I have check again right now, and it seems that the problem have been solved.
Everything works fine.

I am also having problems with the web sharecg during this week (any problems before).
In my case, using either Internet Explorer o Acoo Browser, the page loads ok, and I can navigate and even download freebes, but  all the time I spend on the site, I can see a looping mesage on the status bar telling that the site http://www10.sharecg.com/page_not_found.php is triyng to open (pop up ?) something. And my cursor (arrow o hand) is "flashing" all the time and it´s difficult to do anything.
Strange thing :-(

Thanks dhama, it seems that we will have some new towers and structures to play with at the end of the challenge, if we upload them at freestuff like bobbystahr sugested.

I am working now on the environment.

I made first one module of the lower part