Can you find the mistake?

I've been working on Laura's quilt for her little bun in the oven!  I really, really like this quilt.  To be honest, this is the first time I have done triangles.  But I was using this tutorial as a guide, so it wasn't too bad.  BUT, this quilt has made me think more than I have ever had to think while making and figuring out a quilt.  Most quilts, you sew in rows, from left to right.  However, some quilts like this one and the "Ziggan and Zaggin" quilt, get sewn together on the angle.  So the top left corner piece is its own row.  Then, you sew the first square in the second row to the second square in the first row and this creates the second row.  Finally, you sew all the angled rows together...clear as mud, right???  For me, this means I need to lay out the pieces as I want them and not move them at all till it is all sewn together.  As a result, I either need to lay out the pieces in a place that won't get bothered or sew everything in one day.  I decided to lay out the pieces on our bed, that meant I had to sew it all at once so we could go to bed that night!  I ended up laying out the pieces then taking a picture of it on my phone.  Then I would grab the two pieces that I needed to sew together, carry my phone to my sewing machine, double check the picture to make sure I was about to sew them correctly, sew it, then bring the sewn piece and my phone back to my bed to check again, that I did it right and get the next piece!  Like I said, it was a lot of checking and thinking to make sure I got it all right!  And still.......I didn't get it all right.  I checked every piece about a hundred times, and it wasn't until I was trimming the edges that I found the mistake.

Can you see the mistake???

 

In the top left corner, the pink and purple square is turned the wrong way.  See it now?  I was so annoyed that I missed it, but sooooooo relieved that the mistake was so close to the edge rather than in the middle!  It was a quick date with the seam ripper and just a bit of sewing to correct it!   I also went with mitered corners for both of the borders.  This is the first time I have done mitered borders.  I love the way it turned out!  I used this tutorial, which is so easy to follow!  I can't wait to finish the quilt and send it off to Laura for her precious little baby!