I'd get a much higher level of ice due to you having so much more MP and not as much HP.
I'll edit this once I think of a decent build for you

Edit: Mmk well after thinking about it, I'd switch your imbue to fire and go 100pacheon/100fire/68ice/32light.
68 ice gives you the first book of
Might Guard of Ice which increases your phy def by 55. Some good levels of snow shield. + 42 extra defense with the passive. So you'd get 97 more phy def with level 68 ice.
Level 32 light gives you the first level of phantom + 38% grasswalk. Which if you use protector or garment it'd change to 48% or 58% and that's plenty fast enough.