1330 is enough to get gold reward, but you can get more essences (at least to be able to fill the archive after reaching gold).
On your screenshot on previous spire you've used 295 points from archive then climbed up to 1457, and refilled 127 points back to archive, so after last week your spire...
rounds = full spires of some type (now - Astral Phoenix one), so now you see the results of 3 past spires +currently running.
25/25 = number of players participated/were in FS.
essences = how much you've got at that round
archive = how much you've spent from archive to get those essences.
In a meanwhile they've changed selling value for small premium culture.
Now it gives you spell fragments (in a rate they value that fragments, 0.17 diamonds per 1SF)
No more 1RR per 26 diamonds via building and selling Flower Cage...