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1) I agree with Alex and Major's comments. They are valid points. By the way, if the topic is to be moved, it should be moved to "New Ideas" because that's where all this is done.
2) I don't think it's necessary to delete it or move it to the "Off-Topic" section because... this is a more global issue, and if we discuss it here, we might end up going off-topic.
3) Shevriel, balance the units. As was rightly pointed out, the alt-upgrade for level 1 and the upgrade for level 4 are too strong; give them something less fantastic instead.
4) Levels 6 and 7 are quite strange. Even if you reduce the ability of level 6, bringing the kraken onto land is not a good idea.
5) Nevertheless, well done for coming up with this!
As for aquatic factions in general, the emergence of such ideas is natural, and I believe that something similar has already occurred to the developers. The problem lies in the fact that it poses a threat (see "New Ideas") and requires a third level of the map, which is not feasible in many aspects.