I think your image is a very good example of what Photomatix can do. Keep experimenting!
Here is a wee experiment for you to try:
Get any 3 pics and give them photomatix extreme treatment (multiple Tone Mapping, extreme saturation, massive over sharpening etc) and put them on your phone along with the untouched pics and show all 6 of them to anybody except a photographer. The "civilians" will generally have a lot of love for the processed pics, especially the under 20's. Show them to photographers over a certain age and you might induce symptoms similar to PTSD.
In my experience a touch of HDR / Tone Mapping goes a long way on regular photographs. The best one to process more are the ones that dont have blown out areas, watch out for clouds, and are tack sharp to begin with.