Geomancer, Earth's Wrath (Caster DPS)

[Seraphor]

The bolstering the same element sounds interesting. Sounds like you could do more with that.
I still think the combo system resembles a melee combo, specifically Monk, a bit much. Like granting effects like Umbral Earth II is very similar to shifting to Coeurl Form, etc.
Also the whole Astral/Umbral thing, seems to mirror BLM a bit too closely, but that can be solved with a simple change of the skill/effect names. Astral/Umbral is really a signature of BLM and it works for BLM because Fire is the most Astral element and Ice is the most Umbral element. Wind/Earth/Water are all sorta in the middle.