Children's book illustrations and cover

Hello my name is Christine! I haven’t really explored as far as what style of illustrations yet will try to find something that I also like via internet to give you an idea of what style. At our conversation. I have a few characters one is a frog( green) dragonfly( purple) , fish ( blue) , duckling ( yellow) I am aiming for children 2-3 years old. The story mainly takes place on a pond with lily pads. So basically greenery and some flowers on the lily pad on a pond. It’s sunny in this storyline. There is a picture that I found kind of similar to your work. What styles do you offer? I’m not sure the exact amount of illustrations.