I like the overall design.  It's simple and elegant.  I especially like the groove near the base.  The handle has a nice flow to it too.  It's a little hard to tell but it seems like the rim could be more lip friendly.  Maybe rounded a bit.  The slight texture is interesting.  Will this be all metal?  What kind of material will be used?
Well, anyway, the handle is your main concern.  Looks fine just like it is!  Very nice and aesthetically pleasing.   :)

"Simplicity is the ultimate sophistication." Leonardo da Vinci