ok wow, yes! he definitely has a praise kink, in both a sexual and non-sexual way.
he loves hearing how proud you are of him, since it was something he never heard from any one of his ‘family’ members. so when you tell him that his face lights up and the look of graditude and triumph on his face is beautiful. he loves being encouraged too. when he doesn’t think he can do something or he doesn’t know what to do and you are always there to lend him a hand, give him encouraging words, letting him know he can do this, he can do anything. he loves feeling wanted! praised! loved!