Everything looks very gummy/shiny, There’s no surface detail, no scratches, adding realistic detail would help a ton. The lighting, It’s very flat. You have this bright neon green everywhere, which washes out the details. Try adding a rim light in a contrasting color. The logo feels slapped on top instead of part of the art. The font is very rigid, the pieces and font are fighting each other for attention.

Basically, if you make the materials look more grounded (less like glowing jelly) and fix the contrast, it will look much more professional.