Is susie saw seashells at the shore considered an example of a alliteration of onomatopoeia?

"Sally sells sea shells by the sea shore," or its close variants, are considered alliterations, since most of the starting letters are the same. It is also a tongue-twister, since the Words sound very similar and are easy to mess up when saying the sentence at a normal speed or faster.

An onomatopoeia is a Word that directly represents a sound, like "boom" or "ka-ching."