Nice all-around bow.  1 3/8"  isn't all that narrow in my book for osage, but it looks like you really made it work well for you.  The only constructive criticism I have is about that 2nd picture.  Looks like you could've cleaned up the growth ring a little more with a rounded scraper.  I don't know if it really matters for performance or longevity, but that's what aesthetics tells me.
John