Clamshell Pillow

I'm taking an online class on curved sewing from Rachel of Stitched in Color.  Last week was our first week (out of  five) of class and I loved it.  I'm not new to curved sewing or curved piecing but I am new to improv curved sewing (which we are doing this week!) which is why I took the class.  Plus I love classes and always seem to learn something new.  Rachel is doing a fabulous job!

This is the clamshell pillow project from last week that I finished yesterday:

Matches my red chair so nicely, don't ya think?  :)   The printed fabric is Salt Air by Cosmo Cricket and the solid is Essex Linen.

I thought I had done pretty good sewing in the invisible zipper but it actually has a little bump on it.  Not sure what I did that caused that.  Will have to surf some other tutes and see if something jumps out at me so I can do better next time.