Prompt: 9. **Space light and shadow effect:**Guide children to use watercolor techniques to create space light and shadow effects, such as adding a faint glow around stars and planets to add a sense of mystery.10. **Colored alien scenes:**Encourage children to use rich colors to add color to the alien scene. Purple, blue and green alien plants can be added to create a unique space atmosphere.11. **Watercolor fusion skills:**Guide children to master watercolor fusion skills to make the color transition natural, produce a soft transition effect, and make the whole picture more vivid.12. **The texture performance of ice cream:**Teach children how to use watercolor techniques to create the texture of ice cream, highlighting the softness and deliciousness of ice cream through light, shadow and shadow.13. **Expressing happy emotions:**Encourage children to express happiness and happiness in the picture, and make the whole scene more pleasant through elements such as smiling faces and jumping alien customers.14. **Add watercolor details:**Remind children to pay attention to details, such as the logo of the Star Ice Cream Shop and the decoration of ice cream to make the picture richer and more interesting.15. **Creative signature:**Encourage children to add their own creative signatures to the corner of the painting to show their pride and uniqueness of the work.Through these guidance, I hope that children can give full play to the characteristics of watercolor in their creation and present simple and interesting science fiction paintings full of space imagination.