Bad quality sprites

I ripped the achievements of The Binding of Isaac: Rebirth from steam. The ingame achievements are known as secrets and are different.

Unfortunately Steam achievements are JPEGs, so they have a reduced quality, but I can easily recreate them using ingame sprites.
So my question is: should I recreate these sprites? Can they be accepted when I submit them?

Here a comparison, on the left side is the original and on the right is my version.

  achievement.png (Size: 21.01 KB / Downloads: 51)