PoE Elemental Focus, Ranger, Cold builds

Hi all, I am still very new to the game and tried following Iceshot build I saw on YouTube. So far mapping is amazing, but I'm stuck on on t16 Bosses and seem to be lacking burst damage compared to what I see in other builds. I would appreciate some feedback on how to increase my damage further! :) &x200B;

The life is lacking, couldn't find a way to bump it higher. Dps-wise looking fine, i guess with such numbers it is possible to freeze non-ubers and maybe it will be benefitial to opt for heatshiver, but then we will need to figure out a proper way to cast hydrosphere and i'm lazy. It is hard to tell budget, but i guess it is possible to get everything for under 20div at the middle of first week. Possible a lot less if you selfcraft some parts. Feel free to suggest possible improvements, i'm not good at building)

I elaborate a CoC Icenova around 1 or 2 ex max (cheap 6 link) can someone help checking the PoB that understant about CoC builds, I think theres a looooot of room for late game. This build is designed to rush red maps, delve, contracts and not hardcore stuff. POB:

I had a cluster jewel drop with the vengeful commander notable on it and thought it could be interesting to use in a build with all 3 auras and all 3 elemental damage types on wild strike. here is what I have planned so far although it probably could be optimized by someone better than me. Also the cluster jewels are what I've already got to work with. Any advice before I commit to this would be fantastic.