The latest Ladybug Girl book is Ladybug Girl and Bingo by David Soman and Jacky Davis. The illustrations are done with watercolors a gouache. Gouache is a paint similar to watercolors, but it is very opaque. Opaque means it's not a shiny paint. The illustrations look like they also have some black ink as well.
The art in the pictures are a pleasing combination of details and watercolor washes with muted colors. I especially like the full-page spread of the family in the canoe on the lake and the next page where we see Lulu and her brother peering over the canoe into the water. The page where the family is around the campfire is delightful also.
The Ladybug Girl series are entertaining stories about Lulu (or Ladybug Girl) and her family. Her adventures include going to the beach, playing with friends, and going camping. Lulu is a preschooler and is just learning how to get along with others, stretching her imagination, and being responsible.
The Ladybug books are good to read together as a family, or one-on-one with parent and child. I would also use them in my storytime for preschoolers. There is always a lesson to learn and the adventures are lively.
Check-out the Ladybug Girl Website.