Welcome to Newgrounds presenter, happy and honored to have you here. I do hope you'll keep up the British horror movie theme in later videos, it's a very worthwhile subject! Quickie review of Ep1 and Ep2 (this un)
Decided to round up my rating largely due to the quality of the whole presentation. Different facial expressions, sitting positions, outfits, backgrounds.. well, more animation, would go far to accentuate the spectacle. The amount of clips and stills used were right on the money, though sometimes the composition of the stills looked a tad wonky.
Newgrounds has a lot to offer, other than sharp elbows and locker room etiquette, check the Audio Portal for BGM and SFX options, lots of production resources here, and folks happy to help and follow your work.