YOU SAID:

I need to brush up on my literary devices.

INTO JAPANESE

文学的な工夫を磨かなければなりません。

BACK INTO ENGLISH

You have to develop your literary skills.

INTO JAPANESE

文学的スキルを磨かなければなりません。

BACK INTO ENGLISH

You have to hone your literary skills.

INTO JAPANESE

文才を磨かなければなりません。

BACK INTO ENGLISH

I have to hone my literary skills.

INTO JAPANESE

私は文才を磨かなければなりません。

BACK INTO ENGLISH

I have to improve my literary skills.

INTO JAPANESE

私は文才を向上させなければなりません。

BACK INTO ENGLISH

I have to improve my literary skills.