good quality video... a few things make it look amature. it doesnt look amature in general but these things do.
Dont cut to black, that screams amature. makes me lose my attention to the video since theres nothing to look at. I completely fall out of it and then an image comes on and I have to get back into it. maybee put a filler shot instead or like an out of focus shot since it looks like you want to suspend viewers.
the font.... I dont know if its official production font, but I think it has to go. Get a font that looks more professional. It will change your overall image. try to find a font that screams fashion!
overall though it was very good. your best point was your color correction, nice job on that especialy.