Gilgamesh can be portrayed as a powerful and haughty figure. He could walk around the world of Danmachi with an air of superiority, looking down on the 'lesser' adventurers. His flamboyant style and his love for grandeur can be emphasized, like always wearing the most elaborate and expensive armor.
The story of Gilgamesh is an ancient epic that follows the adventures and quests of the king Gilgamesh. It explores themes of friendship, mortality, and the search for meaning.
The Epic of Gilgamesh is not classified as a novel. It predates the concept of the novel and has different characteristics and structures. It's more like an epic poem or mythological tale.
In my opinion, both have their merits. The anime brings the characters to life with animation and sound, but the manga allows for more imagination and detail in the panels. It really comes down to what you value more in your entertainment.
The 'Gilgamesh First Story' is one of the earliest known works of literature. It has a unique narrative style. The story is set in a mythological world where gods and mortals interact. Gilgamesh's journey to find immortality is a major plot point. This journey not only reveals his character but also reflects the human fear of death. The interactions between the characters are often based on loyalty, rivalry, or a combination of both.
In the story, Gilgamesh's age isn't precisely defined. He's presented more as a mythical and timeless hero rather than having a specific age attached to him.