I got the pictures now.
uhm
i guess it's OK for a first colorset but that rarely flies as an excuse
other than that it's organized in a strange manner
Brownscale first seems strange but that's fine. My main concern is that the last rainbow column is inverted for some reason? Other than that, I'd give you the typical tips I give when critiquing a colorset: Fade the rainbow colors a bit (not too much of an issue though from what i can tell), keep it even, make the browns more interesting (make some a bit more gray or yellower, for example), and keep everything in a logical order.