Lilit is cute.
Longin is a pretty cool mn.
Walentyna is okay, I'm actually surprised at it not gaining popularity with all the other vintage names.
Denis Janusz - from what I can tell
Denis is his surname. As a first name, it would really be surprising and I would suspect a Ukrainian or Russian parent.
I feel like
Edwin is rare but consistently used. I like it. I don't like
Cezary, though.
Marek Antoni Marecki is just so much.
Ludomir is hilarious. Kinda nice though. I could warm up to it.
Magdalena Ludwika is what I would do - a modern fn and a mn after grandma.
Franciszek Bonawenturas parents either wanted some pizzazz but were too afraid to have that in the first name or it's another grandparent mn.
I'm not equipped to have an opinion on
Mahbub, all I can say it works ok in Polish so that has to be enough for me.
Mira Jowita sounds kind of stereotypical to me.
Even though
Mira is pretty rare, the combo to me brings to mind
Mariola or
Jolanta.'
If I had to make my own combo from these names I'd go for
Edwin Ludomir.
https://www.behindthename.com/pnl/109883