While it’s not necessary to make your magic decorative or pretty, many choose to add the additional flourishes. Often it is simply a smoke bomb or a splash of dragon dust thrown in for effect, but it makes the experience more enjoyable for those doing it, and for any spectators.
Brighteye and her mage often give readings and predications for non-magical people, so the fineries are often appreciated by their customers. The moment ends up feeling more important and memorable, and the customer is often so enrapt that they are able to take in all that is said. For those in the know it may seem silly, but the audience seems to enjoy Brighteye’s performance with bulging eyes and hanging jaws.