This Terry Fox Fashion book shown below has a dress with similar shoulders to the khaleesi tunic.
Once you have the shoulder area finished you will find you need to sew around the edges of both pieces, and you will have an overlap in both front and back. I then pinned the inside and outside where I wanted the pieces to wrap together and added hook and eyes to the underside. I sewed down the edges around the shoulders and bodice, carefully tucking in the fabric. I added an opening area in back at the left side vertically going upward, and this offers a bit of extra space when donning the tunic. I then cut a big hole in back, use a marker or chalk if needed to initialize a decent circle before you cut if you want to, but once that was done I backed the circle in a medium weight fabric to stabilize the circle. I finished it up by adding twill tape for the underside front wrap area as it allowed for the fabric to fall more smoothly in front than the hook and eyes used for the back closure areas.
P.S. Thanks so much for stopping by and I hope this post helped if you are attempting to make your own. If anyone is interested in having a costume in this style made feel free to message me over at www.Craftzies.etsy.com and I will be happy to make you one. If you find you need a bit of additional instruction on the construction also let me know, I am happy to answer questions as I can. I do hope I covered everything though every once in a while a question will arise and a bit of additional clarification is in order :)
Final Notes & Possible/ Likely Future changes: Other than the fabric being a bit flatter with less of the texture shown in the images here, the costume will be the same unless of course otherwise noted. I may add a hood to the cape (shown in the original but not here), and I may alter the black leather in the back to create a dual circle opening at the back but until then this costume will be constructed as shown here. Any minor changes made in the future will be noted and photographed if the time arises. Please also keep in mind that this costume usually comes with a pair of brown riding pants which are not shown with this costume. When listed in the etsy shop the pants will not be included-a number of customers in the past have ordered costumes in which they already have riding pants so I have not included them in the likely event that the customer already has a pair. If however you do not have a pair and would like to include them with this costume at the time of purchase please let me know and I will include the price for the leggings with your order, which will be an additional $36 to the order.