To promote my Instagram

I started posting my photos on Instagram, but I still don't have any followers, just a few likes. While I'm not here for followers or to promote any business (just to be clear: I'm not a photographer, just a hobbyist), I'd like more people to see my photos. I've been thinking about paying for Instagram ads; I don't mind paying a few dollars, but I'm not sure if it's worth it just to promote my Instagram/photos. Can you share your thoughts?