Meet the illustrator Einat Tsarfati

Blurb: As a young girl climbs the seven stories to her own (very boring!) apartment, she imagines what's behind each of the doors she passes. Does the door with all the locks belong to a family of thieves? Might the doorway with muddy footprints conceal a pet tiger? Each spread reveals-in lush detail-the wilds of the girl's imagination, from a high-flying circus to an underwater world and everything in between. When the girl finally reaches her own apartment, she is greeted by her parents, 

who might have a secret even wilder than anything she could have imagined!

Read the Kirkus review and more details in this review. 

Kinderbookswitheverything on the topic of building sandcastles I came across an unfamiliar name - Einat Tsarfati. 

You can see a portfolio of her work here. Here is her website.

Here is her bio from the publisher Simon and Schuster: Einat Tasrfati is an Israeli author-illustrator. A graduate of the Bezalel Academy of Arts and Design in Jerusalem, she works as a freelance editorial illustrator in addition to creating her own picture books books, including the international bestseller Neighbours, Sandcastle, It could be Worse and It Could be much Worse. Her latest published book, I'm a Mess, is a witty and insightful commentary on the beauty and potential found in life's messiness. Through this work, Tsarfati champions the idea that chaos can be a source of creativity and resourcefulness, In all her books, Einat illuminates the diverse tapestry of human experiences, often highlighting the beauty hidden in life's imperfections.

Little Nina will not go to bed. Not when the adults are having so much fun in the other room without her! Before her exasperated parents can catch up, Nina escapes her bedroom and races through the house, sampling cakes and just generally stirring up trouble. With Nina on the loose, a cordial family party becomes a wild good time, as her aunts and uncles join in the riotous fun. Finally it’s time for the guests to leave, and it is bedtime at last—not just for Nina, but for the entire exhausted family. Illustrated with stylishly appealing three-colour art, this is a loving, funny portrait of family life—and of what bedtime is often really like. Here is the Kirkus review and read more here. 

One day at the beach, a little girl builds a sand castle. A real castle with domes and turrets and a crocodile moat. And a sea view. Pretty soon, the royal visitors arrive. Kings and Queens, Princes and Princesses all descend on the palace to admire the sandy architecture and partake in the grand party in the Ballroom. But in the morning, the troubles begin. "There's sand in my almond strudel!" "There is sand in my suit of armour!" "There's sand in my bath!" In fact, there's sand everywhere. Is there any way to appease the royal guests? And what will happen when the tide inevitably comes in...   Read this review from Seven Impossible Things Before Breakfast. 

As a pair of shipwrecked sailors float on what’s left of their ship, Albertini is none too happy. The rain, he observes, is unfair enough. Then the flying fish appear overhead – the ones with the sick stomachs. And the singing mermaids, leaving infernal earworms in their wake. There’s the ghost ship full of pirates and the ark teeming with ravenous beasts. But no matter how bad the situation seems, George, cheerfully playing his harmonica, reminds his friend it could always be worse. Ahhhh! But hang on ... is that a giant whale with an overpowering case of tuna breath? Delightfully detailed illustrations add visual comedy to a meditation on tough times that shows that even the worst days can turn around – especially with friends.