What is the appearance of Paul look like in the Bible?

Answer 1

Paul was a pretty ordinary bloke as this scripture suggests:

For his letters, say they, are weighty and powerful; but his bodily presence is weak, and his speech contemptible. (2 Corinthians 10.10)

But he did not judge himself on looks, but on Christ:

Do ye look on things after the outward appearance? If any man trust to himself that he is Christ's, let him of himself think this again, that, as he is Christ's, even so are we Christ's. (2 Corinthians 10.7)