It Is So Difficult To Tell,

if these are photographs or hand drawn sketches,

 Brazilian artist Sheila R. Giovanni specializes in incredibly detailed, hand-drawn portraits of celebrities, all photographs Sheila R. Giovanni/Instagram, 

some of which cannot be told apart from high-resolution photographs,

 using only colored pencils, she is able to create photo-quality masterpieces perfect to the tiniest of details,

 but to make stunning pictures like these takes time, lots of time, 

 Sheila can spend up to 100 hours on a single project, and it shows!

 the artist has over 200,000 Instagram fans constantly praise her and some even call her an “art genius”, Sheila R. Giovanni posts her incredibly realistic pencil drawings on her Instagram, but for aspiring artists wanting to hone their skills, she also holds online classes in color pencil hyper-realism, via her official website, if only I had a little talent I would be signing up, but alas I have none, so there it is, but what stunning pictures indeed.