They are beautiful birds and should produce some very beautiful chicks.
I can’t see enough of the hen to see if she has clear flight feathers or not, but it would make quite a difference to the result. From what I can see she is a light green opaline spangle. The cock is a dark green dominant pied
If the cock bird is not split for opaline you would get about 25% each of dominant pied, spangle, normal & combination dominant pied spangle. The chicks would be all green series unless both birds are split for blue. If they are both split for blue you’d expect about 25% blue series. Opaline will only appear in the chicks if the cock bird has an opaline gene
Sky blue opaline dominant pied cock to light green opaline spangle hen (assuming the hen is not also dominant pied)
Expected chicks: Opaline spangle, Dominant pied opaline spangle, Opaline Dominant pied & just opaline. If the hen is split for blue you’d get half each of blue and green series, if she is not split for blue then the chicks will be all green series.
It is possible that the birds are carrying genes for other mutations that could affect the result
It looks like the hen is opaline cinnamon and not opaline spangle. Cinnamon is a sex-linked mutation and it will only effect the chick's colour if the cock birds have a cinnamon gene. If the hens are not spangle you'll need to take spangle out of my predictions.
Your second cock bird looks very young or is that an old picture?