Most of these versions are just the result of me naively smashing things together and kind of learning what works. More or less just iterating on it until the outcomes fit what I wanted.
Originally my goal was to put together a merge that was very flexible and could be a sort of all-in-one model that could generate images with an abundance of detail and creativity in multiple styles. I attempted to get good results for both 2D and 2.5D semi-realistic images, and put a lot of emphasis on having it be able to make interesting monster girls and furries.
While those older 2D/2.5D versions will stay as they are the direct predecessor of the current version. I may or may not be smarter now, and so from v14 onward this model is going to be a bit more focused and finetuned on being more realistic. My goal is stylized realism, but not photorealistic. I will probably eventually make new separate models that are tuned to other art styles.