Mount Umbrella

Is this a good lighting kit?

I am starting to do some photography as a hobby.. I would like to take portraits.. would this kit be enough to get me started?
Two 12″ Reflectors
One 5″ Reflector
Three Socket & Cordsets with Stand Mounts
Two 33″ White Umbrellas
Two UM-4 Umbrella Mounts
Three Raven RS8 8′ Aluminum Stands
Three 3/8″ Light Mount [...]