overlay blending

I coulden't decide whether i liked this photo as it was shot or after it was run through photomatix better, so i combined the two.
I ran the image through photomatix and opened it in photoshop. I then opened the normal image and dragged the photomatix one onto it. I then duplicated the normal layer. So i now have the photomatix layer on top with two normal layers under it.
I clicked on the photomatix layer and changed the blending mode to overlay. I then merged this layer with the normal one under it. Then i lowered the opacity on this new combined layer to let the normal one under it show through until i had the look i wanted.