We got a ball python not too long ago and are very new to all of this.

He was fine when we first got him but now his eyes are very cloudy looking and his colors seem to be fading
Here are pictures:

When we first got him:



Now:



We got him on oct. 16 to be exact. He was fed the day we got him by the previous owner. We fed him a week after and everything seemed normal but he hasn't eaten since then.

Any help figuring out what could be wrong is appreciated