At least the last 2 ranks should have a unique ornament set unlocked upon completion. This would be a good way for players to show their completions after everything is reset per season. I'm honestly shocked a game like Destiny isn't cashing in on cosmetic rewards like this, we should have a massive amount of earnable ornament sets considering they have a low investment cost for devs. They've especially been slacking on weapon ornaments, they used to offer ornaments for activity specific modes(old gambit weapons ornaments for spare rations etc.)that were earnable but they stepped away from it. Imagine if we had earnable seasonal weapon ornaments to unlock after you unlock the pattern for the weapons? That would be amazing.