Great job, I had a lot of fun with this! My favorite part of this game was how the player also controls a mech that can move around freely, so they can keep engaged with the game during the enemy wave phases rather than the game doing everything for the player, turning it into an idle game. It was a lot of fun and kept me intrigued! I also like the colony farm aesthetic, it was really unique and gave the game a unique personality that I really liked.
One thing I will note is that the game is a bit confusing at the beginning. I thought the roads in the colony would be where the enemies would spawn and move along (as is with most TD games I'm used to), so I placed way too many turrets along them until I realized the enemies spawned in the other direction.
This was still a lot of fun and all of you did a great job with this game!