With the Blend still selected, go to Object > Expand, which will give you a group of circles, as shown below.
Using the circular blend brush you've created and the Pen Tool (P) for maximum control, you can create highlights on the pumpkin body by using an orange stroke color (R=241, G=90, B=41) set to Blending Mode Color Dodge and Opacity 100%. Don't worry about the strokes going beyond the pumpkin body base, as we'll resolve that later. Group the strokes (Command + G) when done.