I want to learn English and Japanese

I'm I come from to China. My hometown is in the beauty beautiful of the Inner Mongolia.

Original

I want to learn English and Japanese

I'm come from to China.My hometown is in the beauty of the Inner Mongolia.

Corrections and notes

I want to learn English and Japanese.

I  come from to China. My hometown is in the beauty of the Inner Mongolia.

This sentence My hometown is in the beauty of the Inner Mongolia is unusual in its construction.

I would  write My hometown is in beautiful  Inner Mongolia.

But your construction isn't wrong, as I said it is unusual. Your sentence has the effect of elevating and enhancing the phrase  the beauty of Inner Mongolia

So if you were a professional English author, I would rate that as a very effective artistic construction.

Well done !