1: Those two games are good reference points! I've heard of The Magic Circle, but never played it, so maybe going through those games will give me some ideas.
2: The game being only two colours was so that I can focus less on art and more on programming (which I'm better at). Now that the jam's over, it would be possible for me to overhaul the art to make it more colourful.
3: Regarding the start of the game, waiting until the player places the first tile is a great idea! I wish I thought of that while working on the game.
4: I was originally trying to go for a more conventional RTS camera, but because I couldn't figure it out in time, which led to the camera currently in game. I think having an option for which camera you want (snapping or full movement) is a good idea, and should be fairly simple to implement.
5: I'm glad you actually took the time to read the credits!
Thank you for the criticism, and thanks for playing!