Kid (Malysh) from the Soviet cartoon.
Recommended weights:
0.9–1.0 — for the original style
0.6–0.8 — for stylization
Recommended tags:
1boy, male focus, blush stickers, blond hair, blue eyes, short hair, red vest, white shirt, black neck ribbon, black shorts, yellow shoes, red socks
For upscaling, I’d recommend using Latent with a denoising strength of 0.7 and an upscale factor of 1.5.