I love what you have done. I'm in the same boat as you. I'm great with spreadsheets, loved the market gardener and want to do it someday, but have never farmed before. So my comments are from that point of view.
- Less is sometimes more. Try and remove anything that isn't necessary or condense when you can.
- I'm not a fan of Macros because you can't see how the calculation are being done.
- Be very clear about what tabs are for results, input, and reference.
- The nomenclature in the calendar is not intuitive. Would be great if it could export to a phone calendar app.
- Some information is easier presented in a graph than spreadsheet. For example the annual plan could be gantt chart.
- The "Weekly CSA Share Content" may be easier if it was an output instead of input. Its also not clear that i can't override when plants cant be planted.
Good luck!