Nexuiz Flag Concepts

I've created some concepts for the flags for the open source game Nexuiz. It's for the game mode 'Capture the Flag' of course. Whether these get chosen or not I do not know (probably not), other people have submitted their concepts and there is a quite good one.
The blue flag is a base concept by a guy with the nickname 'tZork' on the Alientrap forums (Alientrap is the team working with Nexuiz, and tZork is one of the devs). I just added some detail and other touches to it.
This is a work in progress (not so much to submit the concept, but more because I want to make a real model out of this).

So here are my concepts: