If you're ready for feedback on your sandbox draft, you can request one of Wiki Education Foundation's Wikipedia Experts to look it over.
Be sure to explain exactly what you'd like help with, or what aspect of your draft you're most interested in getting feedback on.
If you have questions about editing or how Wikipedia works, be sure you've done the "Basics" training modules. You should also see if the Wiki Education FAQs have an answer to your question. If you're still stuck, you can ask your question here.
To request feedback or help, select the Wikipedia Expert who is assigned to your class, which you can find on you dashboard.wikiedu.org course page.