Hi. I've never tried it myself, as I am still a beginner when it comes to sewing;-) but I found a few good tips on internet. So hope they might be useful for you. Stay Calm and Sew Something: The Wedding Dress Sleeves -- How To Make Petal Sleeve Pattern, my sparkle: Petal Sleeves Tutorial, Sewing Tip - Short Sleeves: Petal design. You should find some good pictures on this websites, so hopefully will manage to draw the pattern yourself. Good luck!