It's a nice teaser.
You need to use some lighting. Today's cameras allow you to shoot just about
anywhere. But an exposes image isn't a well lit image. You shoot most of this
teaser against white walls so your actors are way too underlit. A little back light
and some fill on their faces would change that. When shooting against white
walls throw a little shadow on the walls to break it up. Three or four small lights
will make your shots look less more cinematic.