All 4 are nice names
But I don’t feel like the pairings flow, or are easy to say together so I wouldn’t put the middle names with those first names.
They’re all very popular too if that’s something you care about.
I think Matilda and Rowan are the two I would pick out, and then choose different middle names
I think Matilda is quite long though, so I would only put a one syllable name with it, Matilda grace
Matilda Pearl
Matilda rose
Matilda faith
Matilda Beth
If you like Maisie with a 3 syllable name after
How about
Maisie Penelope
Maisie Aurora
Maisie isadora
Which I think are a bit less jarring without the alliteration
Rowan and Finlay are lovely but quite ‘light’ names IMO and I think a stronger name would work better with them and compliment them more
Rowan James
Rowan Isaac
Rowan Alexander
Finley Remus / Remus Finley
Finley Charles / Charles Finley