Rooibos Dress - Olive Twill

Hello! I started my muslin for the Colette Rooibos dress! I heard it was really tricky so I actually decided to make a muslin this time. I know, I know... I should make a muslin EVERY time, but I usually fit pretty well in the standard vintage patterns of a certain size (which shall not be given!!)

I ordered my fabric and notions online from a store that will remain unnamed - due to not including the piping I ordered and paid for in the delivery box! I called customer service - it was a fax number. So I emailed customer service and got a generic message giving a vague apology which wasn't really fessing up to anything. That was 8 hours later.
Hoping that piping comes soon because I plan on wearing the Rooibos next weekend. I can always go to Joann's and get some but I don't want to drive 30 minutes each way. Every place I can get notions takes at least 30 minutes it seems. A busy, working professional like me has few 30 minute chunks to spare for transporting myself to a sewing supply store.

Here is a photo of the fabric I ordered, so at least you'll get the gist of how the dress will look!