@Ketan Joshi For a WB tank, I’d probably keep the general direction you’re going with. Deft Defender makes sense if you’re expecting a lot of ranged pressure, and Reflexes is useful for reducing guard/parryable damage.
I’m not 100% sure on the exact cap mechanics, but I’d avoid pushing block much further once you’re already around 48% and put the next renown points into whatever defensive stat is giving you the most practical benefit. Your disrupt is already quite high, so I’d also look at balancing heardle parry/block rather than stacking one stat too heavily.
Since you’re mainly guarding and trying to survive in WBs rather than roaming solo, I’d prioritize consistent mitigation and crit reduction over offensive secondary stats. Once you get the 7pc bonus, you can probably reassess the spread.

