Green matches are totally OP...
Why does the tree get to do everything? Once you level it to the point it has Time in it, you don't have to do anything but make green matches and watch the board clear itself through chain reactions and the powerups you keep generating from the green matches.
You should be able to choose which spell the Monkey Wizards cast, instead of choosing target priority. Each spell would have different target priorities, allowing you to get the full effect of the spells rather than hoping they cast enough fireballs to explode the lead bloons, or that your 1 or 2 Whirlwind level ones actually cast a Whirlwind.
The fame per month scaling is way too high. Can't actually play the game because I have to worry about having enough to advance. Also, I agree, some of the errands (relocating drakes) and hunts (hold the meteor, map the magic) should provide you ambient fame bonuses.