How Is my MtG Red/Black Burn Deck?

Seems to me that you have some burn cards but you just threw em together and made a deck. Add like 6 more lands and you have to make a choice. Either have all instants and sorceries to deal damage with the occasional creature cards or have a regular red and black deck but not in-between, then you won't kill your opponents nearly as fast as you need to and your lack of creatures won't last as your opponent has lots of time to finish their Plan.