Originally posted by Jukka.O That is a good question. I don't know.
A solution looking for a problem introduces other problems.
HDR, like other processing techniques, can serve a very legitimate purpose when intended to solve a technical or aesthetic problem that the photographer has identified. When a technique is used for the sake of being used it is perceived as an affectation. It draws attention to itself and often sacrifices the quality of the whole image.
Your second shot I think would look pretty nice without the HDR stuff. Strong framing, and the milky water swirls are just right.
The red house has some interesting framing, and I don't see the value of HDR there. I'd probably crop off another 25% on the left side to better emphasize the texture of the trees and the offset position of the house. The more I look at the shot the more I like it, and I can see where that narrow frame would fit into places on people's walls.
M