The student used to never complete his homework, but now he completes it better. I want to write a happy message to him. How to start?

Good news

XXX classmate:

Because this student has corrected his study attitude, studied hard and conscientiously, he has changed his long-standing shortcomings, completed his homework well, and achieved good academic performance. Having made significant progress, this award is hereby given. I hope this student will guard against arrogance and impetuosity, persevere, and strive to be a good student with both good character and academic performance.

Teacher: XXX

X year X month X day