learning a YouTube tutorial of a JUICY cat paw! meowwww

this is a cat paw I drew with a YouTube tutorial ! the youtuber’s art was way better than mine tho, he had a much warmer color, and his rendering was better… I really dont get why rendering is so hard… WHY? we were using the same app, idk what brush he used but WHY? can anyone tell me what I did wrong 🙁