Excellent work! Utguard Keep was a biotch, but once I finally got past it the rest was easy. If your lacking tank gear, get a set of level 70 crafted Cobalt armor. Also at starting at 74 to 78 each level there will be 2 peices to upgrade through crafting. It will provide a great boost to your tank. Also it takes like 38 cobalt ore to make, so like less than two full stacks. You should be able to buy the ore and find a BS to make it for you well under 50g.
I was allready thinking of check if there was a craftable set at lower levels. I`m surely going to get that one.

My only tip as far as the final boss goes, is take it slow on the first part. By this I mean, do not blow all your high dps cool downs or mana dump at the start, use a more mana efficiant rotation and get to full health while the valkyrie is talking away, as the second life hits a lot harder and thats where you want to max burst him down.
Yea I should blow heroism on phase 2.
Tho I do think I really need those fire elementals. On boss 2 you can also work with earth elementals.

Quoted from "Oatboat"

What do you mean Mana problems? Water shield + Wisdom buff + Mana totem = You shouldnt go OOM.
wisdom and mana totem don't stack anymore
On the last boss I went Wisdom with 4x healing totems. There is still a lot of healing on the whole party even with the totems.And when his weapons start spinning in the middle of your group it`s quite recommanded to move them out quickly lol. Found out it hits like a truck on shamans.