Based off of traditional fauna practice, due to the male having to entice the female, I'd say the guy is the one that looks the most flashy.

So, my elementary attempt would be: The guy is in the background while the woman is in the foreground.

Am I close?

Spot on - have a cookie

(Exact feather and marking colours can vary between individuals, but the males always have high contrast bands on the tips of their feathers. For the same reason a female probably wouldn't even dye their feathers because it'd make them "look manly", kind've like a human male running about in a skirt xD)

Your fictional species is really cool. Are you planning on doing any more adventures in spore? The one you did is my favorite, I've never come across another with a morally ambiguous plot since!

I did have a sequel in the works that was just as much a mindscrew; it was really close to completion (6/8 acts fundamentally done, some art touch-ups needed, script all preplanned) and then the age old galactic adventures bugs started to kick in - plot critical items sinking through the floor, the day/night cycle resetting on reloading the adventure, just couldn't finish it without cutting too many corners :(

That's a real shame! Could you maybe split it into 2? Shame that spore was so limited, but i suppose it had to be made as easy as possible to use.

Are they more reptiles or birds?? Is thier blood is cold?

They have more in common with dromeosaurdiae (ie. raptors), which is pretty much right down the middle (Though they're not evolved from either). They're technically warm blooded (as in their generate and regulate their own body temperature), but their core body temperature is far far below that of a human.

Does that mean that they couldn`t survive in cold climate?

Avali live on a planet of ice, so...

I'm going to just say yes, they can survive in a cold climate.

Not gonna lie, as epic as this looks, this somehow makes me think of this as a lost Star Wars concept piece for armored Tauntauns. XD