A lot of people on this thread are being quite shortsighted. This is just a teaser for a movie that is OVER a year away. Don't nitpick the color, don't nitpick the special effects, don't nitpick anything! Nothing you have seen is completed, and all of it is without context. You're setting yourself up to hate the movie, without giving it a fair chance.
Were there a few moments during this teaser that I didn't necessarily like, or felt un-star-wars-y to me? Absolutely. But like I said, all of this is without context. And even in those particular moments, everything still looked visually impressive.
This movie isn't going to be a carbon copy of the OT cinematography and techniques, nor is it going to confine itself to what you (or I) deem worthy of the GFFA. It WILL introduce us to new ideas, and at its heart, we will see JJ Abrams' visual style shine through. And why should it not? ANH, ESB, and RoTJ all have different directorial approaches. Thirty years later, a new approach by anyone is going to feel very different. You will never accept this film until you accept that fact. But from the looks of it, Abrams seems to be trying very hard to at least present the film in a way that feels familiar.
For me personally, the only thing that felt out of place in this teaser, was the hooded figure and his (or her) crossguarded lightsaber. But like I said, we have no context. And I'm not going to abandon the movie because of an off-putting 2-second clip without context.
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Other common gripes:
-The soccer ball droid. Although somewhat silly, I personally feel it looked and felt like it could have been plucked right out of ANH. And for all we know, it may only have a few moments of screen time.
-The VFX/colors suck! They do? Really? Perhaps it's the compression, perhaps it's the fact that they are (guaranteed) unfinished, but if you really think these VFX are of fan film quality, you're kidding yourself. And again, the movie is over a year away-- they will look better (but even as it stands, they look far better than most of the prequel VFX).
-The falcon is too thin. I admit, it looks slightly off. But there is very little consistency between the different models used in the OT as well. Sometimes it looked thick and brick-like, other times is looked flimsy and light. In terms of dimensions, this looks most like the Falcon from the Second Death Star Battle. Add the fact that 30 years of renovations could have altered its dimensions slightly, and that from now on, we will have a consistent model throughout the ST, and you can color me happy.
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Let's try and see the good in this. For me personally, I grew up on the original trilogy (aka, my bible), but I was still relatively young as the prequels were coming out. And because of that, the prequels will always have a fond place in my heart. But I recognize their many faults... and I mean many. And what JJ Abrams has given us this ridiculously short preview, feels far more like Star Wars than the majority of events in the prequels. And I can't wait to see where the story takes us.
And yes, I DO wish that we got to see some familiar faces, but in retrospect, I'm glad they held out on us. It will be far more satisfying when we get a full trailer next year.