I think I love it, Rob, but it's so tiny I can't be sure. Again: six inches on the long side is a pretty good size for a post. Let's you actually see it.
I am puzzled by this reference to inches!? Image is only defined by pixels, no? If you specify inches, you need to tell us also at what ppi. 72 (default, but defunct)... 94 (as my iMac 24)... 100+ as some other monitors? Again, it would translate, at best, to 600+ pixels, what Rob already showed.
I believe that 800 px would be a reasonable size, as a minimum. That refers to the image alone, not image plus matt plus frame, as in Rob's case.