First level of my first 3D game!

Hi all as I said I am a  making a 3d game here is the first level that I made please tell  me in the comments how much level should I make and what else should I add in the  game. (I followed born cg's tutorial and modifying it by my way).

link to my page - https://auger-gaming.itch.io/

please play other games also as it motivates me to make more games.

Thanks.