See Duyu Gnoumi, Extraordinaire, Mishra's Factory.

You waste a lot of text space when you put vigilance and the triggered ability on separate lines rather than integrating them into the activated ability.

More important than wasting space is that you make it harder to parse which abilities are relevant for the animated and inanimate state of the land.

It's unusual to animate land into nonland creatures. Land destruction is toned down enough at this point that it seems appropriate to keep manlands weak to that line of counterplay.

The reminder text for what it means to be frozen shouldn't be on every card with freeze, but only on cards that care about frozen. Other existing examples of keywords defining their state e. g. monstrosity and renown are also keywords that themselves care about that state.

This land clearly tries to do a lot of unrelated stuff at once - you could remove one or two abilities entirely and come up with a simpler but still complete design.