Nice to have you on board - though that's a bit like gate crashing, you know?!
Earnestly, you're welcome to join in, even though the challenge has run for half a month already. Feel free to keep posting - however, I'd appreciate it if you were to tell me what you shoot with (the "Single in" uses a couple of self-restricting rules, one of which is to limit oneself to a certain setup for the whole month, at least for the images posted within the "Single in" threads).
M.