So I drew someone. But there is something off with the picture. Can you please tell me.

Embellishments area. ornamental tones not printed in the music that seventeenth- and eighteenth-century performers were expected to add to the melody. b. music created at the same time it is performed. c. notes printed in the music that embellish the melodyd. obsolete in contemporary performances

This is just a little thing i just did for fun! hope you enjoy! a: ~what would you first grand if your house was onfire? b: ~what do you first notice on a person? c: ~ what are some challenges you think the next generation will face? d: ~what is the most embarrassing moment in life? e: ~what is your favorite artists? //music//f: ~what are some bad habits you can't stop doing? , but you know you need to stop on them. i really hope you had fun doing this, or not doesn't matter, but if you want more from me contact me! bye now//i can't wait to see some results//ㅋㅋㅋㅋㅋ나를 따라라! ^^(i'm going to put this under arts, even though it's not, so yeah)

Based on the sentence, what does a studious effort require