The velvet foot only slightly touches the needle plate when the foot is lowered to obtain perfect sewing without bruising the speciality fabrics.
When cutting your fabric make sure all pieces in the same direction to avoid differences in the way the light catches the panels. Iron with care, using a piece of the same velvet as a pressing cloth as this will prevent the pile from flattening. Use a Schmetz standard point size 80/12 needle. If needing to use a zip, insert a concealed one as there will be no need to topstitch.