What happened to v2? Nothing, it died before launch. V3 is a TOTALLY different beast! We finally have an SDXL that can create male, female, and all those in-between without LoRas or even crazy prompting. This model likes being naked, so if NSFW is not your goal, there are other models oout there for you.
Tips for use: natural language works best. Negative prompting usually hurts more than helps