[HELP] Including Images in Bio/Signature

[Hikikomari]

From a bit of reading up on this end of the forums I understand that in order to write a signature for my posts, I need to raise my reputation in order to become a trusted user, which then allows me to write and include a signature, as well as having a personal title instead of "Farewell mother...", and I want to check first of all if that's correct or if there's anything I'm missing or not understanding.
That was never explained to me nor could I find a place to have it explained that wasn't a previous member asking the questions themselves.

Now onto the actual topic of the post, I'm wondering if there is any way I can code my bio like normal posts, to include things like images (which is mainly what I'm after), changing font types and sizes, or any of the other available options.
I'm assuming the same goes for signatures and that I can't code those as well, so I'm wondering if there's any way that can be made possible.

Thanks, and sorry for any misunderstandings.