for some unknown reason your shots are missing from my screen. Maybe i will see them in the quote.
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John,
I love the contrasting colours and the blue hour in the first, very nice!
The second is a good image as well, the people mingling around the forecourt with the Marriott sign above make for the basis of a good Architectural advertising shot you just need to do some thing about those lamp posts/street lights. Get down there with the right lens and a tripod and you will have a cracker shot I reckon.
I am interested to hear why you think some elements of the building are not straight and what those are.