I would appreciate constructive criticism regarding this image of the London Eye. It is my first attempt at an HDR image, my first attempt at 'proper' night photography - unless you count pictures of the moon! - and the first time I have tried using noise reduction software.
I didn't have a tripod with me, so I braced myself against a wall and hoped for the best!
I didn't have a tripod with me, so I braced myself against a wall and hoped for the best!

It's very helpful, thank you. I knew that for a HDR image, processing a single RAW file doesn't produce as good a result, but beyond that, my knowledge is quite limited - as I said, this is the first time I've tried to produce anything in HDR, and I'm always happy to learn / improve.
Your Arms Behaved Like A Tripod Quite Well
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