You can also select your character or prop and look at it's Z value at the top left of the window.
The more negative a Z value the further away from the camera an item is.
The more positive a Z value the closer to the camera it is.
Adjust your Z values so that everything is positioned in the Z direction as needed.
You can also use the 3D view to see where everything is and adjust there also.
Providing larger distances between characters and props will also give you more of a 3D illusion when panning or zooming the camera.
See my CTA Tutorials on the YouTube channel CTAStepByStep
Check out EZColors for CTA. The easy way to change Render Styled (RS) colors.