YETI/RTIC 20 oz insulated mug handle

I have a few of the YETI/RTIC cups and as a test for my new printer and to test my outdated 3d modeling skills I decided to try and make a handle. Its not perfect and I could definitely use more practice on the 3d modeling. The handle in the pictures is not exactly the same as the STL. The STL was adjusted so it would fit the RTIC cup better and to re-enforce the handle a bit. If anyone has any input I am happy to listen.