presuming your ID is correct .. and im sure it will be corrected if it isnt .. this is how i would compare it to others ....

https://duckduckgo.com/?q=Tillandsia+caput+medusae&t=ffcm&iax=images&ia=images

it doesnt not look like yours is an uncommon shape ... perhaps there is nothing to fix ...

i doubt the spraying does mush of anything .. other than make you feel like you are doing something with it ... if you want to increase ambient humidity .... put a tray below it and fill it with gravel and water ...

but im not sure it even needs that ... or that will accomplish much of anything ...

most likely.. this needs a greenhouse to make it grow to perfection ... and you dont have that.. so on some level.. accept it for what it is ... and dont hurt it trying to make it better .. it is what it is.. for where you have it .... and thats just ok ... as it surely doesnt look like its suffering ...

ken

ps: the marbles make neat pix ... cool effect ...

Air plants are supposed to be dry, with frequent "rain," so this soaking that people are doing to their air plants is the opposite of that. The curled leaves are from lower light but it looks OK for an indoor specimen.

It looks like a normal T. caput-medusae to me. I've sold 1000's of them.