First of all fruits like this can be super difficult. Your initial shapes are really great, the form of the fruit and shadows etc. I would first of all be mindful of the hard and soft edges, most of what I've done here is just softening up some of those edges on the right side. After that it was all about how the objects interact with what's around them. Is the light from the orange bouncing up on the lemon? or the table light jumping up at the orange? and so on. And then last I tweaked some shadows, made some darker others lighter. Always be mindful and think about what it is you actually see in the image. Great work keep going!
Thank you!