It is a style used in formal settings

i believe it is the bright red satin shirt.

gilgamesh is a hero by birth as the epic explains it. in the epic the birth is explained in the way which tells us that gilgamesh’s creation was made perfect by the contribution of various god and that signifies the goal in his life, which was to become a hero and save mankind. an example from the text says. "the glorious sun shamash bestowed upon him glory; adad the terrible god of storms bestowed upon him courage. the great gods perfected his magnificence beyond all others, terrible like the great wild bull. two thirds god they made him; one third man they made him." a man born with superhuman qualities and partly god is destined to be a hero.

the heroic deeds carried by him later in his life also prove the heroic character of gilgamesh. for example hi battle with the ultimate beast humbaba is a proof of his bravery and characteristic heroism. gilgamesh was warned about the beast as the text says about humbaba “whose roar is a flood, whose mouth is fire, whose breath is death". but with the superhuman strength gilgamesh did the job

figurative language is a resource that fiction writers use to make better descriptions of what they want to write about or express. they can improve their stories, as they can elaborate more vivid and colorful sentences. this way, the reader will be able to have more detailed images in his/her mind.

places, objects, people and even feelings or emotions can be described with a lot of detail to metaphors, similes and personifications. making different kinds of comparisons to make a description more specific, as well as assigning human qualities to non-human objects (and vice-versa) can be very useful for science fiction writers.  

on the other hand, alliterations allow writers to elaborate more entertaining and creative sentences. it consists in using a sequence of words that start with the same consonant letter. they can be used to emphasize something important the writer wants to express, or just as a fun literary device.