Mitad del Mundo

Based on previously posted thumbnail sketches I chose this composition:

I think this composition is extremely strong - very central but appropriate considering this is an illustration of the centre line of the earth. The structure also works well in portrait format. 

This was reduced to shapes, but required more detail than the Louvre to be recognisable, so has a much more 3D feel to it.

Another compositional test of pushing the structure to the side. I feel this is a lot less interesting than the Louvre one, and also doesn't do the structure much justice. It feels frustrating to look at. Knowing that this compositional idea doesn't work with all my structures, I think I will have to drop it.

I wasn't pleased with how the images were looking so flat despite my efforts to make this structure look 3D, so I investigated with texture on Photshop for the shading (though it's not clear at this resolution that there is texture there).
I think that this makes the image much stronger and more interesting and is something that should be applied to the rest of the postcards:

Definitely makes the Louvre and its background nicer.