With regards to the alignment, It doesn't matter what it looks like, on the Zazzle site, some bits of the images get cut off or are embedded in the coil anyway, white border or not.
As for the border, it doesn't help much (I prefer it without the border, as you can see more details in the works). I did mention in the guidelines for last year's calendar that I am no longer adding a white border to the printed version of the calendar so please leave about a half-inch around the edge of your work, that doesn't contain any important elements (I don't want arms cut off or a hole in a character's head). At this point, 20+ years on everyone should know not to take the image right to the edge and that there is a hole in the calendar.
Of course, everyone is welcome to leave feedback but honestly, the calendar is as good as it's going to get. It isn't fancy and I have very little control over what happens once the nice people at Zazzle take it and print it and to be fair not much before, it's not a complex system. Yes, last year the calendar was badly done by Zazzle when it hadn't been like that in the past. I understood the complaints and was disappointed too. If you are unhappy you can as always get a refund, you know that.
Aside from the coil which does interfere with the bottom of some images (it wouldn't have if everyone had left space as asked) it's fine. It's a fan calendar, it's not meant to be anything more than a keepsake. If the Pini's are happy to put it in their archives, then that's good enough for me.