Sunset (on the playground IV) 

magnifique

Wow! Although I don´t like exaggerated HDR-treatment, it works really good on this picture. Looks like a painting!

It's the usual effect I obtain from the Fattal operator. The real problem is that this operator is very noisy over 1024 pixels of width

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Maybe you should try another software then. How about Photomatix?

I tried Photomatix. It isn't free and I think the price tag isn't justified by the quality obtained: much more limited in parameters and less improved in time (I've seen a very fast improvement of QtPfsGUI over the last versions and I'm very confident it will surpass Photomatix as soon as the aligning plugin will be completed).

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Just FYI, I use qtpfsgui too, and align my pics with hdr_alignment_tool, which is also free.
Also, you might already know but if you shoot a raw image, you can use qtpfsgui on the single file (you don't need 3 different exposures, so no alignment needed)

Thanks, Jean-Michel. It is a Windows app; I use Linux. The last version of qtpfsgui uses the new hugin alignment plugin, but for Linux there are only the sources and I was too lazy to compile it (for Win there is a compiled exe).

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ok. If I have time in the coming days, I'll try to compile a linux binary and let you know.

It totally looks like an airbrush painting.