Yes.
I didn’t think of that; that’s definitely something to take into account.
Here’s another thing, though; unlike Helryx and Artakha, where having a canon mask required custom parts (and therefore an Art Contest), it’s entirely possible to build a purist Orde or Zaria with an existing mask. There’s a chance that their masks could be decided by the initial MOC Contest. It kind of gets close to what was going on with the Hagah, where their masks may or may not be a custom part. (Special change/no change permissions, maybe, like the Hagah?)
Personally, I’d go with what I’ve said for earlier contests: if there’s a chance that an aspect of the winning MOC might not be BS01-approved, we should plan around the chance that it won’t be, and have it decided in the Art Contest regardless of what the winner has.
Heck, if we’re going to do a group shot anyways, Orde and Zaria’s “Art Contests” wouldn’t even have to be full contests; they could be literally just the masks, with the winning mask and winning MOC being combined in the group shot that would take the place of Chiara’s Mask Contest.
Plus, doing it your way would avoid the issues we’re having right now with the Hagah Contest, where artists couldn’t start until all four winners were announced at the same time; instead, they could work on their piece as the winners came out over a period of months.
Whatever we go with, I just hope that we can avoid any non-standard shape shenanigans. If Orde’s final depiction has a Hau, for example, I would want it to be canon that his mask power is Shielding, rather than “he might have a different power in the shape of a Hau”.
It would also be pretty sweet if we could get new powers assigned to any new shapes that might pop up, though I recognize that assigning a power to any new shape would probably go beyond the original scope of the contests.
EDIT: I just thought of another thing: if we go with the above approach, should Orde and Zaria’s Mask Contests maybe be held before their MOC Contests?