The welting on the left one has too much excess material at the toe. I would have returned them for that reason alone...
The excess welting material would NOT have caused the creasing. It is an additional issue besides the creasing. The welt was not trimmed properly and it is unsightly the way it sticks out...Thanks Adelantado. You're saying this based on how they look on my feet or in general? I just want to figure out how I could have avoided this without actually wearing them for a few days.