Actually, it's more of a paradox right now, as the gates that Lavos conjures at PD-1 that send the Gurus, Janus, and Schala to different times are NOT DIMENSIONAL GATES! THEY'RE TIME GATES!!! How does a time gate send you to a different dimension?! >:( I like my theory better. (Schala gets sent to 12,000 BC, (it fits the pattern) Janus eventually finds her, then something happens to send her to the DBT, but we don't know what, because Squeenix felt like being jerks and don't want us to know what happened in the 20-year gap. >:( Grr)
But yeah, you can worry about that later. :p I think these sprites are pretty good, try animating them so we can see what they look like in action, and if they're good, (most likely) then you or someone else can start working on her new spell animations. Or something. Since you were able to make that little animation in your sig, it shouldn't be too tough, I hope.
Oh, and no need to rush through CT: just go on YouTube and look for some clips of the Lavos battle. You should be able to see Crying Heavens.
And besides, I don't think that's a good spell for her, actually, since it's a lighting spell, and also note the word Crying. I think that's supposed to signify that Lavos is feeding off of the planet's despair or something. o.O Just create something that's bright, flashy, and white and call it Holy for her ultimate skill, would be my advice. (Perhaps do something similar to Kingdom Hearts: Chain of Memories. If you haven't played it, Holy looks like a huge pillar of light rising out of the ground. Or maybe that could be her level 2 spell...eh)