A digitally altered image of a lightning storm on one side of a tree and a clear sunny day on the other, from publicdomainpictures.net<br/>半風半冷靜<br/>Altered、Calm、Clear、Landscape、Lightning、Modified、Photomanipulation、Rain、Storm、Sunny<br/>改變、冷靜、明確、景觀、閃電、改性、Photomanipulation、雨、風暴、晴朗<br/>資料來源：openclipart ( https://openclipart.org/ )