Print with black, and add a color change around 1.30mm to switch to red. Use 0.10 or 0.20mm layers.
The model can be safely downsized for a Prusa Mini.
The author remixed this model.
Turning this into a 3D model was a good idea. Unfortunately, the original model required background layers, that didn't look great.
I removed the balloons and made the girl thicker in order to get a stronger print and a better surface finish. I then made new balloons, organized them so that they all overlap, and gave them strings large enough so they don't break.