Something I noticed: very few of the monsters in SH 3 had eyes. The exceptions are: "The Glutton" and "God". Very few Silent Hill 2 monsters had eyes either. This, and the fog, might've represented James Sunderland's inability to see a simple truth: he killed Mary. this is righted in the end, when the final boss Mary or Maria has eyes. Is Heather the same? Her Silent Hill also has fog, perhaps to represent her clouded memory of her past as Alessa. The two monsters that have eyes are God (after she 'opens her eyes' and realizes who she is,) and the Glutton, who she gets rid of by saying the magic spell "Tu Fui, Ego Eris" (meaning I was you, you will be me), which could be a forshadowing of her dual identity as both Heather and Alessa.