My baby's teeth look terrible. Is it normal?

Hi po mga momsh, first-time mom here. Ask ko lang if normal lang ba ung ganitong ngipin ni baby? 1year and 1 month palang siya. Nung nag ngingipin palang tlga siya parang kakaiba na tlga tubo ng teeth niya parang may curve especially sa upper part then now parang nagiging rough ung teeth niya you can see on the picture I don't know but it's very unusual for me. Just this week I introduced to him how to brush but he doesn't seem to like it. What can we do about this? Is it normal or something? Probably, there are some here who have encountered the same issue with your baby's teething stage. I hope to find some help/advice here. TIA.