Just like many of the aliens on Doctor Who, the Silurians have changed since their first appearance on the series in 1970. The humanoids have a reptilian appearance. One of them – Madame Vastra – has become a popular recurring character in recent seasons. Cosplayers and makers Bryan Little and Mette Hedin created a costume based on the modern design of the aliens, and I’m impressed by how detailed the mask looks. They told Dvice a little about crafting the ensemble:
According to costume creators Bryan and Mette, the head was sculpted from a clay mold taken of the costume wearer’s head. After giving it some texture, both silicone and fiberglass were brushed on, followed by the final colors. The rest of the costume was constructed from a modified shirt pattern, using both fabric and fishing net. The armor, including the arm bands and gauntlets, as well as the gun, was hand sculpted out of foam. A dremel tool was used for the engravings.
You can watch and learn from an interview with Bryan and Mette about their award winning costumes (they show up around 4:10 as Vashta Nerada):