Anything with the eyes open should NEVER be left in overnight if still breathing. (The following post is "I have never had anything bad happen" followed by "I don't know what happened")

Back to the OP, I don't see anything wrong with your photos. Weight monitoring is a great way to know if you may have other issues going on. Getting a scale now will help in the future but wont do anything now without any record for this animal.

For what its worth my male spider only eats 4 medium rats a year.