What is the right combination of colors to get an apple green mix?

No, Discord currently does not offer those yet.

Yes, this is probably common as some of the blended leaves will be in pieces that are too small for a simple filtering material. If you want to filter as...

Dark colors look better on the tip. It's nice to have the glitter or the darker color fading from the end of your nail towards your cuticle.

It depends on the coloring medium you are using. For some, like colored pencil and shading pencils, you can rub on the pigment and make them blend together. For mediums...

If you want it to be the same color, you should sand it first. After sanded, you should be able to dye it to the same color. Otherwise, you will...

It probably will, depending on how you want it to look. Adding one color will make it a solid color, but mixing can make it rainbow-ish. Mixing it too well...

You can use any color. I think black makes the most sense for the fabric because space is black, but feel free to be creative!

Yes, the clearcoat comes last to protect everything underneath. Spray everything on before the clearcoat.