Every homeschool educator has a specialty. Mine is science and writing. I love art and am a fairly decent artist, but in no way am I a skilled art teacher. That's okay. If you need help with a subject, the internet and your local area have amazing resources.
The links below will help you develop a Neoclassicism lesson to help kids learn and appreciate art.
Lesson Plan Resource: http://www.getty.edu/education/teachers/classroom_resources/curricula/neoclassicism/