From Today's shoot - opinions sought

Hello all,
Went to a shoot in a park today. I really would like to know what you think about this shot and also which treatment you would choose. I know my preference, but would like to hear from you.
1. Colour version
2. Cool tone treatment
3. Medium strength sepia treatment
4. Strong sepia treatment
The original photo was taken with D70, Nikkor 50 mm f1.4, 1/250, f3.3, manual focus, ISO250, WB Auto (-2), available light.
Thanks for thoughts, opinions and suggestions in advance.
Alex
Went to a shoot in a park today. I really would like to know what you think about this shot and also which treatment you would choose. I know my preference, but would like to hear from you.
1. Colour version

2. Cool tone treatment

3. Medium strength sepia treatment

4. Strong sepia treatment

The original photo was taken with D70, Nikkor 50 mm f1.4, 1/250, f3.3, manual focus, ISO250, WB Auto (-2), available light.
Thanks for thoughts, opinions and suggestions in advance.
Alex