I know it's the 'AdiPure' brand but it is quite bland the black design especially as you've made them so black you can't see the design.

Try adding in a bit more detail like a bit of shading or seems and get your lines a little smoother if you can.

I understand what you say about the lines being smoother. And the vertical lines are just the direction of the leather panels.

Maybe if I showed some different angles I could add a bit more design to it.