Not being familiar with Corona del Mar I can't fairly judge the inclusion of the large 'glob' it the middle right of an otherwise fantastic photo... I'm going to vote it as thought it was supposed to be there since this is such a great photo otherwise.
Stunning! I just love silhouettes particularly sunrise and sunset, and this image is my favourite of this challenge so far, just beautiful. One of those images you aspire to take one day. I'm really envious - bravo! The only criticism I have however, is the halo surrounding what I presume is a massive boulder!? Now, I'm only a beginner so I don't know whether thats inherent within the image during capture or whether its as a result of USM!?! If its USM, try Lab color sharpening as it usually avoids colour halos!