Albert Einstein portrait, 2013, 18.5 " x 13.5 ", colored pencil

1. Albert Einstein was a German-born theoretical physicist and philosopher of science. He developed the general theory of relativity, one of the two pillars of modern physics. 

   
   

   

   
   

   
   

Mona Lisa portrait, 2002, 12 " x 16", colored pencil.

1. The Mona Lisa is a half-length portrait of a woman by the Italian artist Leonardo da Vinci, which has been acclaimed as "the best known, the most visited, the most written about, the most sung about, the most parodied work of art in the world". 

   
   

    

   
   

Lorde portrait, 2014, 18.5" x 13.5", colored pencil.

Ella Marija Lani Yelich-O'Connor, known by her stage name Lorde, is a New Zealand singer and songwriter. 

Robin Williams, 2014, 18.5" x 13.5", colored pencil.

Robin McLaurin Williams was an American actor and comedian. Starting as a stand-up comedian in San Francisco and Los Angeles in the mid-1970s,

Hugh Jackman as Wolverine, 2014, 18.5" x 13.5", colored pencil

Guy Williams as Don Diego de La Vega, 2004, 15" x 10", colored pencil

Don Diego de la Vega (also known as Zorro) was a Spanish nobleman during the 19th Century.

Leonardo Da Vinci portrait, 2014, 16" x 10", colored pencil.

Leonardo di ser Piero da Vinci was an Italian polymath, painter, sculptor, architect, musician, mathematician, engineer, inventor,anatomist, geologist, cartographer, botanist, and writer.

Paul McCartney portrait, 2015, 18.5" x 13.5", colored pencil

1. Sir James Paul McCartney is an English singer, multi-instrumentalist, and composer. With John Lennon, George Harrison, and Ringo Starr, he gained worldwide fame as a member of the Beatles.

Details: 18.5 x 13.5 and I used Faber Castell colour pencil.