Chryssis
Explorer
personally I would ditch the cleric entirely as the blessing of the forge is only really valuable for the first few levels until you would get a +1 armor so you are spending 6 levels for 1ac and a +2 ac concentration. you would be better off dipping 2 levels into wizard (warmage) since you are essentially a non-caster. gives you a permanent +2ac and +4 to saves against the first attack to hit you, which wont be very often with 27 ac(at the cost of spell casting for the next turn which you dont do much of) so you can cast shield for +4ac until its gone and then have the permanent bonus. this frees up 4 levels for something else. eg barbarian for small dmg boost, les MAD and resistance to all-psychic and a feat or paladin for some healing, better saves, and maintaining the shield of faith. Also i don't understand why you are focusing on Dex, it serves you very little purpose. you are wearing heavy armor so not getting the AC from it, and are losing out on the cavalier's unwavering mark. you'd be better off doing mountain dwarf (+2str +2con) or human to jumpstart your feat. i'm also not super keen on the kensei for this since at lvl 3 you can only get the +2ac 3 times/sr imo you'd be better served doing Cavalier 11/war mage 2/Paladin 7(ancients). or cav11/hexblade2/paladin7 to further reduce Mad and give you tonnes of race options (although id stick to half elf, human, or mountain dwarf) this gives you +2ac/+4save +int to initiave (+1) and 1xshield/sr when you are hit on reaction, or with hexblade 2xshield/sr and some invocations / +cha (+2) to saves, spell resistance, 1/sr restrain +2dmg from dueling style, shield of faith and if you want to boost damage a bit some smites.
with human starting stats = 15+1 str 9+1 dex 13+1 con 12+1 int 11+1 wis 13+1 cha and 4 feats so sentinal + 3 asi so +4str +2con 20,10,16,13,12,14 for more dmg, or +6 con for better concentration/hps or if less MAD hexblade 11+2 10 15+2 8 12 15 (Mountain dwarf) ASI +5cha +1con for 13,10,18,8,12,20 so worse initiative, better constant saves (but lower save vs 1 failed spell per turn) more inconsistent ac
apologies for the wall of text, it got late and i'm not thinking clearly anymore
with human starting stats = 15+1 str 9+1 dex 13+1 con 12+1 int 11+1 wis 13+1 cha and 4 feats so sentinal + 3 asi so +4str +2con 20,10,16,13,12,14 for more dmg, or +6 con for better concentration/hps or if less MAD hexblade 11+2 10 15+2 8 12 15 (Mountain dwarf) ASI +5cha +1con for 13,10,18,8,12,20 so worse initiative, better constant saves (but lower save vs 1 failed spell per turn) more inconsistent ac
apologies for the wall of text, it got late and i'm not thinking clearly anymore