I think most multi tile sets are designed to work to what retailers refer to as an "Opus" pattern. It depends on how many different sizes you have but generally a 3 tile pattern is called Opus, and a 4 tile pattern is called a Grand Opus. There are even some 5 tile versions.
Here is a link to Mandarin Stone's versions.
Opus patterns.
Stewarts version looks very defined as a pattern. That's good if the customer has a well ordered view of things, but most Opus patterns try to look more random, although if you get the randomness of their pattern wrong it means lifting a few tiles lol.