How to make asset look more "3d" (sail of a sailboat) I am working on creating this scene using Blender

I would like to make the white sail of the sailboat look 3d, as it looks a little flat right now, especially the top part of the sailboat, where there is no light reflected. I'd appreciate any suggestions on how to do that. Currently, I am just using a white base-color principle BSDF with a glossy shader. I was thinking of possibly using cloth simulation, but I am new to Blender and I'm really intimidated by it (although I will use it if that's the best thing to do). Thank you in advance for your insight!
You can use one of these 2 solutions:
The Sculpt solution:

Create your sail, curve it a bit:



In Sculpt mode, select the Mask brush (don't use a Subdivision Surface modifier for the moment if you want the mask to be visible), paint the 3 corners:




Select the Cloth Filter brush, keep the Type &gt; Gravity, paint until you get this kind of result:



The Cloth solution:

Create your sail, select vertices on the 3 corners and make it a vertex group, give the object a Cloth physics with the group as Pin Group, give it a constraint &gt; Copy Scale, here on the X axis and with the edge as Target:



Create an edge under the sail, create a Force Field &gt; Wind with a Strength of, for example, 3000:



Play the animation, the wind will blow on the surface, scale down the edge so that it folds a bit the sail, scroll in the Timeline, when you're good, apply the Cloth modifier: