Start with your jersey knit. Using an existing dress as a guide cut out the tank dress shape and cut two pieces, front and back. You want it to be bigger and be able to drape. Sew right sides together (with the correct sides of your material together) at top and on the sides as in the first picture above.
Measure the arm holes. Fold your material so that one side is the same measurement as your armpit measurement. Sew your material rights sides together. I then cut this tube in half making two sleeves.
Match your sleeve seam with your seam on the side of your dress. Sew them together, careful to match the right sides together. I like having my sleeve with the right sides out. I then slip it itno my dress which is inside out. Then I sew matching my bottom seams. Repeat this with the other sleeve.
Turning your Dress around I cut a slit from the top of the dress ON THE BACK PIECE ONLY. This gives an opening for putting on your dress.
For your top of your dress measure the width from the back corner piece all the way around to the other back corner so you are measuring the length of the top of your garment. Use this measurement to cut a long strip of both jersey and interfacing.
Apply your interfacing. Fold this piece together. Take raw edges and pin them to the raw edges on the top of your dress. Sew them together so you can turn up your collar. I made my piece too high and made her look like a priest 😉 So be careful not to make it too big. Use two pieces of ribbon and sew them to the back of your garment where the closure piece would be. This way you can adjust your dress in case she grows.
I left the edges raw because knits can handle that. And we are making this dress during the rebellion! Who has time to finish off hems. We have a super stations to destroy.
For the belt cut out a piece of white leather or leather like material. I used my Silhouette to make three circle stencils. Paint the circles grey. Cut strips of jersey material and sew them to the end of your belt, with right sides together.