I'm not a fan of either of them, mainly because the composition in the frame is so tight, due to his head / ears being cut off. Was this done intentionally?
As mentionned, I also saw the issues with DOF in the photos where the nose is sharp but the eyes are not. When doing portraits, people or animals, 95% of the time you want to get the eyes tack sharp. This is what the viewers eye's will look for, and if its not sharp, the photo comes off as a miss.
Are you using auto focus?
Read up on only using your center AF point and how to half click and recompose.