Josef Lada is tightly connected to the Czech Easter traditions as he painted some of the most favorite Easter postcards we have here in the Czech Republic.
Here are some of this paintings - they often show us a caroller (or more carollers) with pomlázka (a braided whip made from pussywillow twigs), a women giving him an egg or girl(s) running away. I wrote a blog post about Easter Monday traditions three years ago, here it is: Easter Monday.