I am at our apartment, spending the last week of our On-The-Job-Training when I had the idea of sketching these things, the key is actually the key to our apartment. Then I put my phone just beside the mini thermos to make it a classic still life art with a touch of Technology.
Among the still lifes I've created, this one is my favorite, because it symbolizes health. it reminds me of the sayings "an apple a day , keeps the doctor away". Water means purity, drinking water 8 hours a day will keep your body system function well.
I had fun sketching it until 12 am in the morning. I used gentle strokes using the finger to create the liquid part of the water and the shadows.