Gravy Mix is still Great! but it has been superseded by PhotoSomnia.
This blend started as a mess of mashing models together but has become a very delicately balanced and versatile model. The objective has been to improve photorealism and hand/face details.
I've found it to be great for sfw and erotic female fake photos, idk how it is for porn or other subjects that's not my niche. It can also get quite artistic with creative prompting.
While Gravy Mix 1 is still somewhere at the heart of things, It's undeniable that Dreamlike Photoreal in particular has made a huge difference and helped to make this quality of output possible more than any other contributing model. Their modified licensing requirements as visible on their page need to be read, understood and complied with and will affect commercial applications, but this model is very suitable for creative use by hobbyists and independent professionals. Otherwise permissions for use aren't mine to give as this is just a blend of other people's work, but I'd appreciate being given credit if these models are being used in blends.