From the search results, it seems that there are no relevant results that provide information about acrylic nails in pastel colors. However, based on the information provided in the search results, we can conclude the following:

Positive:

• The SAVILAND Gel Nail Polish Kit contains 30 pastel colors and is suitable for natural nails, false nails, acrylic nails, nail tips, etc. .
• The Pronto Collection nail polish set includes a "Pretty Pastels" option that is toluene-free, formaldehyde-free, dibutyl phthalate-free, formaldehyde resin-free, camphor-free, and ethyl tosylam… material type-free.
• Crayola oil pastels are a good value for childrens oil pastels and come in a 28 color maximum range, including metallics.
• The article "How to make your own soft pastels from scratch" provides a detailed guide on how to make pastels using powdered pigments, gum tragacanth, and water.

Negative:

• There are no negative results related to the search query.

Ingredients or materials:

• The SAVILAND Gel Nail Polish Kit is made with healthy ingredients.
• The Pronto Collection nail polish set is toluene-free, formaldehyde-free, dibutyl phthalate-free, formaldehyde resin-free, camphor-free, and ethyl tosylam… material type-free.
• The article "How to make your own soft pastels from scratch" lists the following materials: powdered pigments, gum tragacanth, glass jar, water, glass palette, palette knife, paper towel, and pastel paper.