A fan from the Integrity Toys Janay & Friends Yahoo Group wrote that there were 4 Alysa head sculpts:
First face sculpt (BIG)
Second face sculpt (improved but still biggish)
2.5 face sculpt (slimmer than the second sculpt; probably the one I have)
Third face sculpt ("pinched" look in my opinion; I have MANY of these, LOL)
Below is a comparison photo of the 2.5 and the 3rd Alysa face sculpts.
I just love, love, LOVE the second or 2.5 head sculpt. But I love the titan curls on the third head sculpt doll, too. The dolls shown are Heat Wave Alysa from 2001 and Studio It Alysa from 2005.
Below, are more photos from that lovely, volatile-looking Alysa (2nd or 2.5 face sculpt?): Urban Reflections (far left), purple-haired Color Rave, and Heat Wave.