Drawing pictures of kufr

Q: I had an art project on the Mexican day of the dead festival and painted canvases that I think are haram. I painted two girls and one of them represented life and the other one represented death. One of them was with glowing eyes and I wrote in my art book that it shows birth and that she has life in her or something like that. The other one had two hands reaching out to her and I painted this because in the Mexican day of the dead festival they call out to spirits which is shirk. I also wrote that she could be depicted as a soul keeper but I didn't know about shirk at the time and I think about what I did until recently I realised how bad this is.

I even wrote stuff like these girls are like guardians of heaven and earth like a metaphor but I didn't believe in any of this. I also wrote how one of the girls in the canvas her soul is either going back to her too it was for my art project and I did it last year but I found my art book and these canvases and I ripped them up. I have one more canvas left and this canvas I named it "spirit lurer" which I don't know if this is shirk or not? If it is shirk, shall I get rid of the canvas or is it allowed to be painted over the skulls of the painting and what if I leave the face of the girl on there and turn the painting into a girl in a jungle and not holding the skull? Because the canvas is still linked to day of the dead but what if I get rid of the day of the dead element? I got rid of the other two canvases of the girls but this canvas i didn't get rid of yet because i didn't think it was shirk since i only named it "spirit lurer" but i thought maybe i can change the name of the painting. in the painting its only of a girl holding a skull unlike the other paintings.

Hajj-e-badal

Q: I want to perform Hajj for the second time. Can I perform this Hajj as Hajj-e-badal for my father as he is not well since he has hypertensive, sugar and prostate problems. I have problem with a mahram. My 15 year old nephew will turn 16 soon. Can he go with me as a mahram?

Plucking white hairs

Q: Recently in one of your replies, the following Arabic extract was quoted. ولا بأس بنتف الشيب

I was taught that it is not good to pluck out white hair which seems to contradict this extract. Please explain to me the ruling on plucking out white hair.

Carrying out a sunnah action without making the intention

Q: An act that's sunnah. When one started it, it was done with the niyyah of sunnah. After years you become accustomed to it, it becomes a habit like dusting the bed or reading certain duaas or eating with the right hand, etc. Will you still get the thawaab of practicing a sunnnah or will the niyyah be have to made every time you do an action? Some aalima said that one won't get rewarded without the intention.