I just noticed that you've placed the movie into a loop...well, the artwork isn't too bad. Plus, the animations you've made for the character is pretty neat flowing and natural, so points for that. And the music's got some funk going on.
The only weird part is when the cat starts climbing over her body while she's dancing lol.
A good little flash, especially as you stated that it's your first animation. I like what I'm guessing was a use of rotorscoping and frame by frame animation although I would work on neatening up your frames as some had the odd little bit of to the side of the figure that accumulated it random dots that appear for a split second. I would also have like to see this carry on further into another room say but as you stated, it's a test.
Thing to work on for your next upload would be: Putting a preloader in, thinking about making something longer, dialog, maybe and some of the background looks low resolution possibly due to resizing, especially around the shading.
A good short, great choice of music and a great first stab at animation. Well done.
I think it's pretty funny, and well-done. The cat was a nice touch.