I had to laugh when I saw this Groo the Wanderer I had created this a while ago but didn't think anyone would like it.
I found that fking_scifi v2 is the best checkpoint for this embedding. From the sample images, those are the ones with fking_scifi_v2 in the prompt
I found using a the trigger word AsergioA with a short description works best. Negative prompts are trial and error, a lot of times one isn't needed.
If you try for getting more than a barbarian, it needs a more detailed prompt.
I have an embedding using the same training images for 1.5 but can't find the right checkpoint to get the same style as with this one. If I find one, I'll list that one too.