It sounds to me like you (and possibly, your teacher) don't know a a lot about game art. Thats cool though, we all start somewhere and polycount is the best place to start. I suggest you research game art and game art workflows. Game art encompasses just about all forms of digital art. From concept art to3d modelling to…
Agree with Xoliul not really game art, but if I where you I would improve the render, reflective objects looks really dull with a black environment and a checker floor. I would setup some nice studio lighting with a soft curved backdrop. Found a tutorial here for you, but if you take the time to search on general studio…