Potential talent:
As an animator, I must put the "needless to say" disclaimer of having a bias towards my own particular likings of animation, but I will do my best to be fair in every way...
Graphics- I see this is your first submission, and considering that while none of it was too impressive, everything was impressive and no mistakes were made. The lip sync was enjoyable as well.
Style- I accually find it a bit charming that you have the romatic heart to publicise a gift for your girlfriend. While the general audience may not understand most of the humor, I'm sure that it's a truckload of giggles for the two of you.
Sound- I would strongly recomend that if you choose to continue the "alvin and the chipmunks" style, simply record your voices at a regular pace, and tweak it with the hopes the audience will pick it up. I can see what you were trying to do, but I dont think that all the technical parts translated very well.
Violence- The violence in this thing is about as maniacle as a box full of kittens.
Interactivity- You have a play and a repeat button. I dont think you are looking for alot of commentary on interactivity.
Humor- With all the cute little elements in the background and all the little changes in the animation, mixed with the fact that this is specifically for a girl, I really did get a laugh...
Comments: You are a talented animator. Dont expect something so short and so audience specific to make it to the front page, but dont be discouraged. With some plot enriched flashes, you would easily do well to become a popular artist on Newgrounds.