How to ask for a favor that had already been granted verbally but not factually

As per title

There was a guy who had told me he would have done me a favor I had ask him about.
Specifically, I did a photoset with him for free during an event (he’s a pro photographer).

He has already edited and posted on his page the photos of other people he shot with, except that these people have more instagram followers than me and he released their photos with priority

Mine are still “being edited” but it’s been almost 2 months compared to the others

So how did I ask him to work on my photos, since he already had told me he would have released my content in one month maximum while it’s been 3 months already?

I don’t want to sound pushy, since he did me this favour… but I also trust people to follow along with their word, so I’d like to have my stuff from him since he already consented to