Team Fortress: Invasion

After months of drawing, here it is! My take on what TF2 could have been, based off of concept art for the characters, circa ~2003-04.

These are the closest designs to the characters we know and love today, which most likely means that they decided to keep them for the final game much later. This game would have had humans fighting against aliens for natural resources, each side with unique classes to fight with. While these are not necessarily all of the Invasion designs (none of the concept images are explicitly marked as such), based on the similar colour schemes and styles, we can assume that they were meant for the Invasion game.

In my opinion, this also would have been a cool game. Maybe not as popular or prominent on Steam, but still pretty cool. What do you guys think?