I completely agree with the posters above. Well written, well documented, decent pictures, links to datasheets are present.
Can't think of any reasonable things on how you could improve the quality of your article. But if you really want me to do some nitpicking (I'm talking borderline level nitpicking here) this is wat I came up with:
Albeit the images are well in focus and have a high enough resolution, some of the foto's show some evidence of an ever so slightly distracting use of a single flash camera. To prevent this you should have used multiple diffused light-sources like a professional photographer would have done.
But hey... I recommend that you forget that I even mentioned this. I'm just rambling for the sake of it. And this is actually the only thing I could come up with.