For V4
Like V1 it works with negative weight. It gives a bit different images compared to V1. I would not say it is upgrade. Both give nice outputs, it is just different. Weight depends on how long your prompt is and how many loras you are using.
You can use it without tags, but need higher weight. Usable tags:
traditional art, lineart, white background, simple background
Personally i like traditional art + simple background combo. traditional art alone works pretty well too.
You can use tags like monochrome to make it black and white.
There seem to be quite big variation between seeds.
For V1
FOR TRADITIONAL LOOK USE NEGATIVE WEIGHT. Weight between -1.1 and 0.7 seem to work best. Play around, prompt can alter the strength needed.
FOR MORE SOFTER STYLE USE POSITIVE WEIGHT
simple background, lineart, traditional media can make the effect more stronger.
This has been trained to work on pony models, can't guarantee it to work on any other XL model. Also results may