As an artist who's tired of still lifes, I advise you to make brushstrokes following the shape of the object and pay attention to the reflections (reflected light). Don't be afraid of contrast in your work. The second piece is better because of the vibrant contrasts. In general, try to use more color; it will only be beneficial :)
P.S. I could share one of my still lifes, as I've never had any problems with them, but I don't have any in digital format(((
🏹🎪+⛓️♿=💕