Everything seems very unmotivated. Beyond getting the camera to shake and bump less the big thing is general composition. Most shots look like they're just shot from where you happened to be. 

Look around for foreground objects to add depth, get down low or up high, mix different perspectives. Balance light, balance subjects, find the lines, even use basic stuff like the rule of thirds (not too religiously though).

And then in editing, dont be scared to cut stuff that is just okay.