Well, you didn't get a whole lot farther during my absence... I like the design on the box. (and of course I went through the effort of specifying 'transparent' in the Google Search. )
We try not to do multiple numbers at the same time. It's just 1 number per picture and you also have to wait for 2 people to post between you and your next post.
I certainly have, but it's not an official rule. Also because there are many pictures that do include multiple numbers but make it clear which one is the right one, for example on lego sets where it shows both the serial number and the number of pieces. This one, to illustrate.