Some sample sentences :)

Very well written!

-It's important to praise children's talents. (Good!)

-This food looks bad, but tastes really good. (Good!)

-This movie expresses very well the human's complex mentality. The movie expresses the human's complexity very well. (Your mistake is syntax.)

-That kid wants so much that toy so he cried loudly on purpose. That kid wants that toy so much he cried loudly on purpose. (Your mistake is syntax. Also, you sentence is implying that the kid didn't get the toy, because you are using Present Simple in the first clause "that kid wants that toy so much" and Past Simple in the second clause "he cried loudly on purpose".)

-We are already on the 10 month, it has clearly become cooler. We are already in the tenth month, it has clearly become cooler. (Your mistake is a time preposition. We use "in" with years and months. We use "on" with specific dates like "on the 4th of July".)

-Even if my grandmother doesn't know any english word, she traveled alone to America. Even though my grandmother didn't know any English words, she traveled alone to America. (Your mistakes are: even though vs even if, use of tenses, capitalisation of country names, singular vs plural.)

If you have any questions, please don't hesitate to ask :)