Please, help with rejects. I'm really confused :c

Hello, AudioJungle community. That is my 3 and 4th rejects and it really upsets me. That items does not meet the general commercial quality standard. Please, help me to understand - why. Thank you a lot.

Both tracks need better melodies and better harmonical/musical arrangements.

good tracks but not very commonly licensed, its not commercial enough

use better samples and make better arrangements and mix-master

Thank you for help. I’ll try something to upgrade my music