Aiming with the bow seems incredibly janky currently, as it's impossible to tell where you're aiming or how far the shot will go.
Some kind of indicator (such as a crosshair at the target or a visual display of the arrow's arc) would be nice, possibly along with some target locking on the enemy with a marker over its head.

It's already possible with the shoulder surfing mod.

With just Epic Fight installed it seems like one would be better off switching to build mode to use the bow than trying to use it in combat mode, I hope some improvements to the bow combat can be considered in the future as there's so much potential for it.