Is owning an image different from creating or drawing an image?

Q: Is owning an image different from creating or drawing an image? I came to know that several Sahaabah and the grandson of Hadhrat Abu Bakar Siddiq (radhiyallahu anhu) owned a curtain that had a picture of birds and phoenix.

Also, several Sahaabah wore rings for stamping that had drawings of men with swords. Kindly clarify the issue.

Woman conducting an online course

Q: I am a woman and need to earn money. I have developed an online course that will not reveal my face but I need to record my voice explaining the content, and I cannot limit the course to only women (there is no way to do this on the online course platform). Though people will hear my voice, no one will know me. Is this halal?

I may also be able to use a software to change the pitch of my voice slightly (lower the pitch of my voice). Is this better?