I am currently working on a translation of the Hebrew and can say that yes, there is indeed more going on that is not readily visible in most English translations.
Rather than just say what I see (which is actually one of the ancient teachings from some of the sages of old), I will share a unique feature of the creation days and we will begin to unpack the possible hidden meaning behind the story:
Normally, if a simple sequence of numbering is being used, you would use ordinal numbers in this way:
First, second, third, fourth, fifth, sixth, seventh.
Furthermore, if you were wanting to make sure each sequenced number was linked in that direct ordering, you would add 'the' with each event, so as to say:
The first, the second, the third, the fourth, the fifth, the sixth, the seventh.
If you were wanting to show, not a sequence, but simply a reference to an event, you would use cardinal numbers, like this:
Day one, Day two, Day three, Day four, Day five, Day six, Day seven.
In the creation account, you have two anomalies, unique in scripture to this particular sequencing of events. Here is the ordering, as it would literally be read in English:
Day one, a second day, a third day, a fourth day, a fifth day, the sixth day, the seventh day.
What two differences do you see? And what do you think that tells us about what the Creator may be communicating?