Good to see you playing with the filters. I actually prefer the basic photoediting in Photoscape (free). I almost always do the auto-level tool (though sometimes it's too much and I have to turn it down) - a click of the backlight and sometimes try their color enhance. Again, sometimes it's just too much, (and there's only one setting on that tool) - but sometimes it's wonderful.
Anyway, beautiful picture in any case!
I never tried that one... and it seems there's no Linux version, so I'll stick to GIMP! 😄
Ah!
No, there's not a Linux version, but it works well with Wine.