Photo 2 – Diversity in nature; all the colours and shapes co-exist so well.
Photo 3 – the ducks tried to take the abandonded bike into possession. Proabably a continuous exposure to all the passing bikes made them wonder ”Hmm, what if I tried to ride one…?” Better luck next time!
Photo 4 – a druid altar in the middle of Groningen? If so it’s a cute Dutch mini version of Stonehenge, probably utilized by forest creatures… Ducks may know something about it.