Thanks anomieC; I removed the facade as per your advice. Not sure what you mean regarding the rounded shadow - I think a tower can have sharp edges from a top-down view but still curve in profile.

In any case, here is the latest version with added flags, some more shading and desaturation, the roof-top grille thing and some metal studs. I think its basically done now unless I add some roof windows to the front, which I should do really.

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