SVO and SOV refer to subject-verb-object and subject-object-verb respectively, and neither of your clauses in your sentence has an object, so it's not relevant. Instead, you have nominatives with a copulative.
The general rule of thumb for these (aside from "context is king") is that the first word is the more important and emphasized one. I'll give you three sentences, and tell you what the most natural reading of each would be.
...caelum caeruleum est.
...the sky is blue.
...caeruleum caelum est.
...blue is the sky.
...est caelum caeruleum.
...there is a blue sky.
The first one is the most neutral and preferred for straightforward descriptions. The second one is emphasizing the description of the noun (the sky is specifically blue, as opposed to red, or green). The third on the other hand is emphasizing the existence of the nominatives ("there is a blue sky").
I should note that these are general guidelines, and you'll always find exceptions, especially in poetry, where word order can sometimes be bent in order to fit meter.