You beat me to it with the subject change - yours is better! I've had a similar thing on a heavy derby from another maker. I think it's just while the thick sole isn't flexing much and it pushes your foot up and forward as you walk. I don't think it will go away, but I do think that once you've broken these shoes in, the laces will close more tightly over your instep and the creasing will be less. Incidentally, that is a brilliantly weird colour - I like! Congratulations.