I think you have most of the elements in place and it looks pretty good already.

If you want advice on how you could improve it… I just sketched this, each drop should have lighting similar to this. Sharp bright white reflection of where the light is hitting it at the top, directly under that, (still at the top) you have a subtle blurry shadow. At the bottom you have a blurry subtle highlight, then under you have the shadow being cast by the drop.

All of those elements will look different depending on the size/shape/angle of the drop, angle of the lighting, whether a shadow would block lighting etc.

Look at lots of reference images to compare different conditions to get an idea of how the light in the drops behaves :)