Custom drapes are a luxury item, but there's no reason you can't copy the look without breaking the bank. Pinch pleat curtains are typically my favorite, and there are a lot of great options out there. Amazon carries the Two Pages brand and I've found those to be great quality. I have them in my living room currently. These are the linen-look unlined pinch pleat curtains I chose.
I have grown to love the look of curtains with trim, and scoured the internet to find something I loved that wasn't super expensive. This is what I ordered off Etsy. I also got samples of this and this. Our ceilings are 8', and the curtains are hung almost to the top, so I ordered four 96" lengths so I'd have a little extra. It arrived as one single roll, which ended up being just fine.