Indeed, it can look cool and maybe MC will have scars in the future that can't be healed but since this is the beginning of a huge story, I didn't wanted him to have a scar right off the bat. As for the outfit, indeed it may look like a D rank adventurer but it's a cool fantasy outfit so I think it fits but of course, it will become more and more stylish with time.
As for your last question, thank you for giving me an explanation and indeed MC can summon any item he came in contact with and that he knows the use but he didn't really touched many items to this point and the only thing he has in memory is his sword right now but it will expand further with time, don't worry. Also, thanks for the praise and keep in touch for more updates