Only underglaze paints can be used on ceramic bisque. If you intend to return your item for glazing and firing, please don't use oils, acrylic, poster or any other paint. These paints won't be able to be fired and glazed.
Use these swatches to see final glazed result - there will probably be some variances due to different screen settings.
The paint should be the consistency of thick cream or yogurt - if it has thickened too much add a teaspoon of water and stir well and repeat if necessary to achieve the desired consistency.
Apply 2 even coats with long overlapping strokes from the pot to achieve a solid background
For a WHITE background, leave it unpainted and start directly with your design.