Usually the smallest curve on the top sleeve edge attaches to bodice at the underarm/armpit. Try that.

Fabric is laying correct side up on your table/floor. Place sleeve pattern with writing side up. Cut. Then flip the pattern piece over and cut a second sleeve. (This is the mirror piece; or rather, each sleeve is now a mirror (opposite image) of the other.)
Follow the notches, instructions and other tips here for which sleeve is left and which is right.

I have to put this info in a frame still am so scared of placing right sleeve and left sleeve pattern on fabric, right sleeve pattern place single layer right side of pattern printed side up and left sleeve turn pattern pc over printed side down but right side of fabric is facing up.for single layout. Pls do not understand mirrer image how does it work on a pattern can not get concept need help or I must be a hard learner .
Thank you

Left and right sleeves will be mirror images of each other. When cutting single layer, lay fabric correct side up and pattern with text print up for one sleeve; then leaving fabric correct side up, flip the pattern with the text side down for the other sleeve. It can be confusing! Keep at it.

I cut my sleeves out on single layer fabric that pictures fabric layout with wrong side up and flipping one pattern piece printed side down .Then noticed instructions : If cutting out single layer of fabric cut with right side up..could this be why my sleeves don’t look right ? I am new to sewing

Oh, sympathies! Pattern flipping for left and right pieces is a nightmare – there are too many directions things can be rotated in. I was actually doing paid work on one occasion when I cut out two non-reflecting pieces instead of mirror images on a one sided fabric. (I didn’t use a fold because the two pieces needed to be different sizes). And I was well aware of the danger and I’d checked several times. I too will never know what I did wrong. I was able to cut the piece again, but it was an awful waste of fabric, and the finish (due to a subtle pattern in the fabric) was much poorer than if I had got it right first time. The customer was very gracious about it and I think it was genuinely all right for the purpose in question (says she hopefully!).

I suppose that is why the conventional way of doing it is to cut mirror images on folded fabric: the left and right can’t go wrong, whatever else can.

When people say that we haven’t got enough hands, I always think that I’m very glad I only have to sew two sleeves… imagine trying to make sleeves for an octopus 😛 🙂 >< Best of luck with your future dressmaking adventures 🙂

Oh no! So sorry to hear of your frustration.. but then glad you have a unique-to-you top. 🙂