As the first to post feedback on this, I would like to first say:
Wow. Very good work, especially given this is your first SW process video.
What I especially liked: Her feet shrinking into her sandals, her jeans dropping off to show her underwear, her huge shirt hanging halfway off of her, and her too-large bra. Dante (?) and Suzi did a decent job of acting it out, too, though there were a couple of awkward bits.
Suggestions: Would like to see too-large panties as well, perhaps a shot of her clutching an oversized bra and panties against herself (maybe even the bra's straps down over her shoulders). I'm talking, like, so oversized they'd obviously drop right off if she weren't holding them. Also, what might be neat would be for her to shrink again a little bit AFTER she's got the makeshift coverings on (like maybe they're short & tight on her, then she shrinks again and they're much larger and looser). Kinda like the ones on Tara & Velvet in Bigger is Better, only in reverse.
Anyway, this was really well-done to be your first one. I posted a quick blurb about this over on Minimizer's forum as well, so hopefully you'll get some business from that direction. I certainly hope this sells well enough to cause you to make more.