Earth magic is pretty boring, especially for the first 3 levels. Compared to the other elements it seems rather lame. I suggest new spells and would like to start a thread here for new spell suggestions.
Let me start off with I think that earth and herbalism should go hand and hand, with most of these spells requiring various herbs to work.
-Create Gold, take x y z herb, cast this spell and poof lots of gold coins
-Grow - Allows you to grow herb of your choosing, perhaps requires a more common herb as a catalyst
-Mold Earth -Allows you to actually form structures like buildings from the earth just rising up and forming them, higher levels magic means more detail, until you can actually writes detailed descs etc.
Anyway this is just a start, please think of more.