Im pre-guessing from looking at the progress of the last one that the colours are going to change throughout this, so could anyone keep the original palette saved somewhere as to amend it when the obvious happens, cus the colours are great atm.
Stating your tiles before hand is the only way to go, I've known two people to finish on the same section before, and it'll only get more confusing as more people join, maybe you should jot em down on the main post dreamisle..
I got the weekend to do my bit, im gonna take my time cus I know it'd just stick out like a sore thumb if I just rushed it for the sake of finishing.
oh and I forgot to mention, goodluck everyone
