A seasonally-appropriate still life:
Gyro, November 05, 2016, 01:15:39 pm
You were talking about not knowing how to progress, shading is a good place to start.
You're drawing from life, which is awesome, and you can clearly see the importance of using tone to define shadow, you're just not pushing that tone far enough, or letting it carry enough of the information in your drawings.
Look at this pumpkin. You've drawn it well, but it's held back, because you're only using the line art to define the shape, then timidly scribbling in the shadows without committing to them.
Have a look at the sort of stuff that comes up when you google 'pencil gradient', try out some of those gradients yourself on the paper you like to use, and then try some drawings where you try to capture the shadows of your reference, and let the darkest parts of the picture be a lot darker than that pale gray you have going at the moment.
From the pictures of yours I can see on this page, I think it'll help you move forwards a step.