This is going to sound extreme but...
If it was mine, id cut both trunks down to the first side branches and wire those up as the new leaders.
Its a hard thing to do early on in your bonsai journey (taking the whole top off something) but what youre doing is taking out most of the straight trunks that have no real movement and creating two new leaders that you can shape which will add more movement and visual appeal to the tree.
Please dont take the above as an insult as the tree is still lovely the way it is.
Its funny you know...as you progress on your bonsai journey, what initially seemed like horrifically destructive practices (taking the whole top off something) starts making more and more sense as you develop an ability or skill to visualize the tree as you would like it to look in say 5-10 years.
Otherwise, just prune the tree lightly, wire and shape a few branches, and enjoy : )