Stunning clouds over Prague

What do you think? Did I use tone-mapping or manual blending here? I’m just curious.. if someone can see the difference in my photos :) Everyone who visit my blog regularly already noticed that I’m experimenting with new techniques of combining photos recently. And so a lot of my recent photos were manually blended in Photoshop, but there were still tone-mapped HDRs in between them. So what do you think? Which one is this? :)

This is a photo from Prague, taken form the Old town hall tower. For me,the clouds were a big surprise, as the only appeared right after the sunset. It was a pleasant surprise :)

Number of exposures: 3; Camera Model: Canon EOS 5D; Lens: Canon 16-35mm F2.8;
Focal length: 16 mm; Aperture: 2.8; Middle exposure time:2.5s; ISO: 100; Tripod used: yes

Where was this photo taken:

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