Put every 3D geometries inside a composition to multiply it's renderers
                    Select the 3 geometries we already created and press 
                    
                      Ctrl+shift+C
                     to put them inside a 
                    Compo
                    Composite 2D Layer, Shape layer and 3D Layer together. [Ctrl] + [Shift] + [N] to create a new composition after opening Smode
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                     (I'll rename this composition "3D compo")
                    You can also do it by selecting your 3 geometries and 
                    
                      Right Click > Make Compo
                     
                    
                    Now select this "3D compo" composition and either 
                    
                      Right Click > Add Renderer
                     or press 
                    
                      Ctrl+shift+C
                     to add a renderer on this composition.
                    Turn this newly created renderer in "perspective placement". This placement type will allow you to deform your image to adapt it to a different perspective.
 
                    
                     
                    
                    How to manipulate a Perspective 2D renderer
                    Now go in edit mode (red circle on the screenshot below) and select the perspective placement renderer. Now you can use the little green points on the corner of the layer to move and distort the image. I placed this second renderer as showed on the screenshot below with a 25% opacity.
                    You can either place it with your hands or copy "Position A/B/C/D" of the renderer's parameter if you want to copy it exactly.
 
                    
                    You can like that multiply the renderer with a very few performances cost and so render complex and detailed environments using this technique and your imagination.
 
                    
                    Add fancy effects
                    Let's add a 
                     Blur
                    Quick-to-create multi purpose blur 
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Blur
                    Quick-to-create multi purpose blur 
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                     with those parameters:
 
                    
                    Add now a "Add contrast+" 
                     Exposure
                    Control the contrast of an image by adjusting its tonality
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Exposure
                    Control the contrast of an image by adjusting its tonality
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                     modifier preset 
                    
                      Right Click > Modifiers>Color>Exposure>Add contrast +
                     
                    
                    And put a vignet radial mask over the exposure modifier: 
                    
                      Right Click > Masks>Radial Mask>Vignet
                     
                    
                    Now uncheck the "Inverse" Parameter of the radial Mask and go in edit mode (green circle) to place it with your own little hands or just reproduce the values in your keyboard.
 
                    
                    And to finish it off, Add a 
                     Chromatic Aberration
                    Lens chromatic aberration effect
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                      Right Click > Modifiers>Stylize>Chromatic Aberration
Chromatic Aberration
                    Lens chromatic aberration effect
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                      Right Click > Modifiers>Stylize>Chromatic Aberration
                     
                    
                     
                    
                    Conclusion
                    I really don't know what conclusion I could make from all of this....
                    Oh yeah, for thoses who find that composition too dark, you can add this little omni light next to the others (and don't forget to deactivate it's volumetric as we saw before)
 
                    
                    and here what you will get :
