5 - chili? Should be very hot.
7 looks like a jalapeno.
6 looks like a baby bell pepper.
2...not sure but I am growing some that look just like that and are turning red. It's not a hot pepper but quite mild.
Not sure on your tomatoes, what kind? Looks like you have a bit of blight (the yellow and black discoloration) which can slow production. Usually I have tons of tomatoes but it's been a bad year for them. Only one plant; may be a pollination issue? I'm sure one of the wiser gardeners here will have more answers.