Unlike several others Ravensburger does NOT offer a quick preview of the finished product. The best I could see was their ad
View attachment 763513 which shows uniformity of size and shape for pieces.
same with Zazzle
View attachment 763516
and
View attachment 763517 puzzleyou
Thanks for the links.
Ravensburger advertises - for their regular puzzles -
"Best of all, every single piece in this puzzle is unique, no duplicates, for the perfect interlocking fit."
But all of the photo puzzles seem to have remarkable uniformity of pieces, especially with respect to size,