in my opinion ukebashing is more about building speed and releasing it all into uke(or at least most of it) in new and cool looking ways
what you did in the replay was just launch at uke and split him
you should try building momentum in weird as ways and then releasing it into uke
if your more comfortable in -30 grav there are some amazing ukebashing replays that are in -30 so try doing something goofy in -30
the most important things that make a replay look good in my opinion are speed, fluidity, and uniqueness
try to exemplify that