Lufthansa Christmas Card

Now that is a pretty fabulous concept - easy to understand, straight to the point. The silhouette makes sense, the way you added "snow" on top of the buildings is a really nice touch. Also I like that you only used a few colors, keeping it all rather simple, yet organized. It doesn't look to busy, there is nothing that could distract the viewer or confuse them.
The only thing that bothers me (and please correct me if I'm wrong, or maybe it's just the font) is the apostrophe in "here's". Shouldn't it be the other way round? I'm not sure actually <img src="e.deviantart.net/emoticons/g/g…" width="17" height="15" alt="" title="Giggle" />
Also, instead of the slight grain (snowflakes? rain?) I would've used bigger snowflakes, some kind of brush maybe.

Overall you did a pretty good job, though!