Just send you a DM.
BTW,
I'm not sure the beerpong thing adds much to the casting call.
Better show your first episode (and tell them it is already a bit older) and a showreel from your DOP.
And I still don't know what the story is about...
I always introduce myself shortly (but keep it relevant to filming), link to my work, tell what the idea and story are about and tell what role I think would fit the one I'm contacting (or what roles I'm casting for).
I add when it will be shot, what crew will be there, where it will be shown, when they will get the video for their portfolio and that I'd like a response, even when it's 'no' (at least then I know I can move forward).
Hold on!