so far I've gotten pretty far in my character creation process and I've managed to create everything on my character without having to sculpt anything from scratch. It's a realistic-looking character and so far he looks pretty decent with procedural shirt and pants textures, procedural leather, a procedural face pore texture, and for the wrinkles in the clothing, I didn't sculpt them from scratch. I created the wrinkles in the clothing with the Blender sewing system, then, I only sculpted out imperfections and cleaned up stuff.
I feel like after all this work I've reached a stumbling block and that's the lips on my character's face. Is there some sort of maybe combination of procedural texture + real-life texture I can use to create the lips from scratch without sculpting? I tried to take pictures of my own lips and create a sculpting brush using the anchor sculpt tool, and it ALMOST looks okay but not really (I created my own brushes for my characters' hands and they turned out pretty nice). I took the lips pictures with my 1080P Panasonic G6 camera and I'm afraid maybe the quality isn't good enough? I also tried texture painting my lips, but the quality was too poor for it to look good.
How can I create realistic lips from scratch without sculpting and without downloading someone else's lips texture from the internet? I've gotten this far without doing anything like that and I'd like to keep it that way. I'm not looking to create a 100% realistic lips texture just something that looks good enough if I angle the lights in the right places for photos and videos. Thanks in advance for any ideas.