Me gusta producir fantástico escrito en español.

Me gusta producir fantástico escrito en español.
 

Buena escritura can sometimes mean good handwriting just as good writing may sometimes mean good handwriting in English.

Un buen escrito is good writing as in how to put together a good sentence, but I you don't see term often. Quiero escribir bien sounds better to me, but native speakers will need to confirm this.
PS: keep in mind that fantastic and fantâstico aren't exactly the same.

Thanks. My bad. :P
"Quiero escribir bien"
or "Creo que escribir bien"
That will do me. :P
Should I just use that? Thanks. :)

It all depends on what you want to say.

If you want to be a good Spanish writer as in someone who can be hired as a writer: Quiero ser un buen escritor.

If you want to learn who to write well as in putting the comma in the right place you can say: Quiero saber escribir bien en español.

Just as in English, there are so many ways of saying things. Often the meanings vary a little too.

Ahh. What does "fantâstico" mean? I thought they meant the same. Thanks. :P

The word fantástico (with a corrected accent mark) has the following meanings. Only the colloquial meaning (the fourth entry) sides with the meaning you intended.

The English meanings of the word 'fantastic' are listed below.

So, Spanish and English meanings agree, making this word a true cognate.

Thanks. So it is safe to use the Spanish "fantástico" to mean fantastic?

That is what I said, yes, but it will seldom precede the noun.