are these for fun or commercial?
the HDR is not good, halos colour shifts etc
tell tale fuzziness and loss of IQ from photomatix rendering
what would you use instead of photomatics?
Try the HDR built into the recent Canon DPP update. The good thing is it's free, and you can easily do some subtle looking HDR with presets. DPP certainly has it's critics on this site, but I keep going back to it for some basic edits and RAW conversions.