Very nice presentation!  I have just a few minor comments:
s3/4/13: you went very quickly over the last plot on each slide.  Too fast for me to comprehend.  If it is worth showing the audience these plots, it is worth giving them time to digest.  What is the takeaway from these plots?
s8: there is a lot of text here.  Can this be reduced somehow?

Regards,
John

 

Nice presentation, just one minor comments: 

The "two solutions" mentionned on slide 12 only explained in the backups slides. At least point to the backup slide. 

- Walter