My deepest apologies to everyone who found out that they were not in the mosaic, it was my mistake. My logic was: there are spaces for more than 500 photos, I receive 250, that means that each photo will be repeated at least twice, so most likely at least one of them won't be covered by the band members. I didn't count on the fact that the program tended to repeat them in the same area. When I noticed that, I did some manual checking, but obviously not enough.
BUT... In order to be totally sure no one is missed, I had to check by hand and eye, photo by photo, each one of the 250 photos I have, and repeating this operation for about 250 times. It took me about 4 hours last night. So if anyone dares to complain anymore that some photos get repeated, I will personally strangle that person!

(or make him/her do my 62.000 photos check, just to see how that feels like!) Don't worry, the results of all this checking will be available soon.
Laura