For the Logo I think something just like the one here
>>15316667 would work, Change the colors of the Pokemon Logo, but keep the font. Put Sage in there, and then make a sillouhuette of Quetz in the background sort of like they did with Milotic. When I was talking to Kirn I found that image while looking through other custom ones and found that to be a good match to base ours off of. Not to be confused with coping it, but the layout of that one would be something to work off of.
