However, after this first attempt I had quite a long break in taking HDR photos - mainly because I wasn't happy with Qtpfsgui which was quite complex for me (too complex in fact). Another reason was that too many things in photography were still magic for me. However, in August 2009 I discovered Photomatix:
Above two photos were taken the same day and although they are still not good, they aren't also very grungy (from the beginning I wanted to achieve natural look with HDR). I loved Photomatix from this very day (and I use it regularly up to date) and from then I take HDR photos regularly.