Keep Still Life!

Five a day (at least) if you like lemon. The kiwi and lemon have both just about departed from this life. I was using my new f1.8 lens for fun. Could be sharper but that's just me (no comment), not the lens. The problem was the balancing act to keep the lemon on top. It escaped a couple of times due its zest for life.
( it possibly thought it was being lined up in some bizarre vertical firing squad scenario). Anyhow having tried a traditional still life I thought this was at least different. Is the lemon sharp?