I love
Thomas. It is handsome and strong and I love the history of the name. It is a name I would consider for a son of mine one day. I think it fits in really well with your other names.
I have never really warmed to
Mirella. I think it may be the -ella ending as I tend to steer away from frilly names. But for someone else's kid its fine. In your case, I think it is a little close to
Mira, especially seeing as you seem to be especially close to
Mira. I am just imagining the "
Mirella, where did you get that top?" at a family function and both
Mira and
Mirella answering.