V3:

Training data can be downloaded here (11 pictures).

Parameters:

{
  "engine": "kohya",
  "unetLR": 1,
  "clipSkip": 1,
  "loraType": "lora",
  "keepTokens": 1,
  "networkDim": 32,
  "numRepeats": 10,
  "resolution": 1024,
  "lrScheduler": "cosine",
  "minSnrGamma": 5,
  "noiseOffset": 0.1,
  "targetSteps": 1027,
  "enableBucket": true,
  "networkAlpha": 16,
  "optimizerType": "Prodigy",
  "textEncoderLR": 1,
  "maxTrainEpochs": 28,
  "shuffleCaption": true,
  "trainBatchSize": 3,
  "flipAugmentation": false,
  "lrSchedulerNumCycles": 3
}

At epoch #17, the results are best, though the pictures are distorted slightly 😅. So you may need to decrease the lora strength (0.9 ~ 0.8).

This lora generates a girl with round face.