First HDR image

I'm a big fan of High Dynamic Range,especially its colour and still  learning how to do hdr images. This photo I took it last year in London is the first hdr image that I done. Firstly,from Apps store I got this one application which is the HDR artist and is free then what I do, I duplicated this picture into 3 images. Then I made one brighter,second is neutral and the other darker with contrast. After that, open the HDR artist then combined this 3 images.

Save the image, then went through picnik and iphoto for further editing.That's it and I'm not sure whether it looks good but is a good try to start. :)