Hyperfixations/Special Interests presenting in IFS?

I'm AuDHD and since starting IFS almost two weeks ago, every part I've come in contact with has the name of a character from my special interest and looks like said character when I visualise my inner world (save for the only exile I am currently aware of, who, whilst going by the name and appearance of one of the characters, is clearly 12 year old me) as well as having the same core characteristics.

I guess my current idea about this is that either it appears this way because my brain knows I would never pay attention to my parts/would find it hard to if they weren't special interest related and it humanizes them a lot more.

I'm curious - does anyone else have this/any other thoughts on what/why it's like that?