Taken with a compact with a tiny sensor. All that is the photo was present at that magic instant. Nothing was added at a later stage. Every year there is a cloud magic day in Costa Caparica. If Asterix and fellow village inhabitants had seen what Lisbon local saw above them that day, they wouldn't fear a falling sky but instead would contemplate in awe, totally amazing. Post processed in photoshop for tonal effect and increased sharpness.