Your first picture is overexpose or overphotoshop!. This picture is better.
To correct overexposure using stacking that is news.

I reckon you can get the using the first image similar to 'as stack' by adjusting selective color in PS.
cheers
Rasanya over expose sbb pulled the Levels in the wrong way (ikut fashion shows kot). And nak compensate for old, dim-lit monitors for other viewers. Hehe~
Will try to later refine in registax and iris if got time. nak mencari best method.
Fastest/Easiest:
Yields best result:
The one stacked above was done by easiest method in DSS.