Create a safety poster for a construction site showing a lightning protection shelter. Include a construction worker entering the shelter during a thunderstorm. Show lightning striking nearby cranes or equipment but safely diverted by the shelter. Use bright warning colors (yellow, orange, red) and clear icons. Add simple safety text: 'During lightning, go to the shelter! Stay safe. Do not touch metal or tall equipment.' Make it easy to understand at a glance, suitable for a construction site wall." See more