Heck, you don't even have to call it an upgrade. I can easily buy the Mirrorverse suit as some sort of more heavily armoured, specialised version. Like something he might've worn on that Buzz Lightyear cartoon for a special mission.
Like, the neck area looks like his normal suit is underneath, like this is some sort of Hulkbuster-style add-on armour.
Heck, you don't even have to call it an upgrade. I can easily buy the Mirrorverse suit as some sort of more heavily armoured, specialised version. Like something he might've worn on that Buzz Lightyear cartoon for a special mission.
Like, the neck area looks like his normal suit is underneath, like this is some sort of Hulkbuster-style add-on armour.
Honestly the only negative I can see is the lack of helmet bubble. Just seems incomplete