Hi Melissa! Some great work. I've made several suggestions below. :)

What implies it mean to be a good translator

As a A person is willing to  interested in becoming become a translator needs to develop many skills to perform well in this field. Obviously being bilingual and speaking well in both languages is important. But advanced reading and writing skills are essential in both languages as well.

When it comes to translation, the principal aim is to be able to transfer the same meanings, feelings, ideas, and thoughts from one language to another. (<- great sentence, very clear.) Therefore, reading becomes an essential element, where a high-quality high-level comprehension helps to both increase vocabulary and have a profound cultural knowledge in the specific area you want to specialize in. In my personal experience as an eager avid English novel reader, my reading has benefitted from be involved immersing myself in the English culture, recognizing colloquialisms, expressions, and so on. 

The same applies to writing skills. Indeed, writing is just as, if not more, important than reading. When you write, it not only helps you practice expressing your ideas but also using proper punctuation and refining word choice in a text, which is helpful if you want to translate something without losing the perception essence of the original idea. There are many famous writers who are also translators. They develop the characteristic of rendering thanks to their ability in writing. (<- This sentence doesn't make sense.) Examples include Samuel Beckett, who translated his books from French to English; and Charles Baudelaire, who translated many of the works of Edgar Allan Poe, even though he did not master English in its totality.  (This last part feels superfluous.)

In conclusion, being bilingual by in itself does not a good translator make. (<- There are a certainly other ways to say this than what I've suggested, and there's a good chance this construction would sound odd to a non-native speaker. But it's correct and a common, sort of whimsical construction used with these kinds of sentences.) A translator works on cohesion and coherence. (<- great words. Higher level vocabulary than you've used in most of the rest of it, which makes me wonder who the audience is. These words are likely more complex than the average native speaker will be able to fully understand.) Skills that develop when you read and write. Translation is a more profound area that requires a complete process of the human mind. Translation is a profound and complex exercise that requires a holistic approach to language and the human experience.