Almost there
I loved the house, loved the music and loved the mischief. As soon as the little Demon shows up, however, it goes downhill. Give him a nice exciting pose or have him do something that foreshadows the series when he pops onto the screen. Also, a trailer for a web series shouldn't loop. There should be a back menu with a website and a facebook and a foosebook and a twitter and a twatter and all that mess.