I Dont think her dancing is bad. i think the close up looks really odd. not her fault or brian though i wish they just do it IAS4U style. from behind and good close up shots.
The stiffness is part of her style. It has it's pros and cons IMO.
I don't think it's the most challenging part we're seeing now but it's nonetheless very encouraging.
Anyways it looks interesting. I wanna see the rest of the video!
Even if the video sucks stans are going to give it raving reviews, she's old in celebrity teen pop stars years that's why she's stiff.. people expect too much from her...