I like [name]Iris[/name] Roey (especially since it’s meaningful!), then [name]Iris[/name] [name]Ruby[/name].
Not sure if I like [name]Iris[/name] [name]Rory[/name]… too many R’s?
[name]Iris[/name] [name]Rosalie[/name] could be a good way to honor a [name]Rose[/name] without being too obvious. [name]Iris[/name] [name]Rose[/name] is a bit too matchy for my tastes but still pretty. As a previous poster mentioned it is almost a homonym with the cheap, potent and not very classy wine. 
Other Variations of [name]Rose[/name]:
[name]Iris[/name] [name]Rosette[/name]/[name]Rosetta[/name]
[name]Iris[/name] [name]Rosela[/name]
[name]Iris[/name] [name]Roisin[/name] ([name]Ro[/name]-sheen)
[name]Iris[/name] [name]Rosina[/name]
[name]Iris[/name] and [name]Hazel[/name] is a perfect sibset! Best wishes to you!
how about iris rowan?
the rowan could definitely work to honor roey!
[name]Rowan[/name] seems to masculine to me, personally, but it seems like a nice way to honor a Roey. I really like [name]Iris[/name] [name]Rosalie[/name], and you could also do [name]Iris[/name] [name]Rosa[/name] (my name, switched around). It may be too flowery, though.
[name]Iris[/name] Roey is so sweet!! Go for it!