Awesome Osteopernums

In mid-spring I purchased various colors of Osteopernum. I've had varying success with them as potted annuals over the years. This was not a successful year for them, unfortunately, but they are just beautiful flowers, and I got a few shots of them before they withered away...

left-right: 1.) Original photo (untouched); 2.) same photo with monchrome tint; 3.) same photo again with monochrome tint but w/color preservation turned all the way up, and "glow" effect added.

Which do you like best, and why? (click any photo to enlarge)