You'll definitely need space for the tomatoes! 14 plants will be a ton of tomatoes!
and I think the markings on the mint are from 4-lined bug. When small, they are red dots, but they grow to have 4 black lines with yellow in between - about a quarter inch long. A quick search and you'll find info (the link I found didn't work here for some reason).
RE: Tomatoes, peppers, and herbs!