Please remember that this is all trial and error at present, purely for feedback and tweaking. The end result will need to establish some type of logic and order, at a rough guess. Right now, it is just random colours and doves.
The colours can either stay random just for the sake of being different in each set, or they can form a pattern and logic.
The birds have a logic... in that the current three are a matching set, the next four are a different matching set, then the last are a set of five.
I don't think we're really thinking completely about this just yet. For example... you can start out as a dove, then become an eagle, then an owl, for instance. Doves are typically symbolised with peace, eagles are of action, occupied with high and weighty affairs, given to those of lofty spirit, ingenuity, speed in comprehension, and discrimination in matters of ambiguity. The wings signify protection, and the gripping talons symbolize ruin to evildoers. The eagle is held to represent a noble nature from its strength and aristocratic appearance. Owls are wisdom.
You could view it basically as, trying to find peace (balance, harmony, some relaxation), then action, then you progress into wisdom of self-management.
Meanings can really be quite easy to align...