I did this less than a month ago, in 2017.
So far, this is my favourite piece that I've drawn in the book. It took a huge effort to sketch every single grape carefully, and get the shadows right for all. I also had to imagine that a light source was at a corner and get the resulting reflection right. I used F, 2B, 6B, and 4B pencils. The darker pencils are for the edges and corners. It's also to create the shadow effect. Lighter pencils are for the rough sketch and for the reflected areas. It took me about 30 minutes to complete it. I'm happy with this piece.
So far, this is my favourite piece that I've drawn in the book. It took a huge effort to sketch every single grape carefully, and get the shadows right for all. I also had to imagine that a light source was at a corner and get the resulting reflection right. I used F, 2B, 6B, and 4B pencils. The darker pencils are for the edges and corners. It's also to create the shadow effect. Lighter pencils are for the rough sketch and for the reflected areas. It took me about 30 minutes to complete it. I'm happy with this piece.