Noob needs help with his HC ball lightning crit Witch!

So here is the build off from the new talent tree and would love to get your feedback / suggestions, i havent played POE for a looooong time :D Any help/suggestion/critism is welcome!

http://www.pathofexile.com/passive-skill-tree/AAAAAgMA37CCEI-mRKtVriycEFgFQnYRQZbk7K6z0PVMsy0fBAeVIIPbHwJrF8HzVcY2xbzqoqM6WNgkwFR_xqyYpwhqQwj0EZYRD52uDkgHHn6vGmxd8pUujRkWb-QicNV-M_DV4BIkqilPjmSJ06SRj_pJUdlfNunsOIKb96ZwUhOe6_XdjONqGjjVdbb6KguMNsMJp4TMt_PqVUu5k5BV8s5h4vIdfVPdBZ2AgzhgbRRN73wEs6IA8B8CcQ==