hey im interested in making changes and i could use some advices

well like i said i didn't like my old Mard\physical build with sentry.. so i switched for fire and i like it more. ( with the old build i clean'd T6 pretty easy, hated the play style. )
now i just need some upgrades.
http://eu.battle.net/d3/en/profile/cocainhore-2167/hero/5589629i wanted to ask what ya thinking about these changes :
- new nat bow with bigger damage ( got new one in stash just gotta reroll it at weekend when i come home )
- new amulet with fire % \ duel crits \ dex - something like Cameo
- switching for a new Quiver like Arch with Dex\Speed\Crit\Elite Damage\and Cluster Arrow damage
- gambling for a new Witching Hour till il get old
these 4 changes will be first, after that i thought about just upgrading items ( like better Cindercoat with Vit \ better Mard pants and so on.. )
and continue with paragon leveling. you guys think im making something wrong with the build ? should i change items.. if so - why ?
like i said before i like the cluster spam \ running play style. ATM im doing ok T6 and easily T5.
thank you !
This post was edited by darksoho on Jun 12 2014 07:45am