I have passed over many 2d animation software these days, since free to trial paid ones.
I figured out, to create a beautiful animation, nothing else is better than hand-drawing… the last hand-drawing mode animation software i used was Digicel Flibook 6, that is TERRIBLE AWESOME, it simulates the original way animated cartoons were made… Well… Pencil2D is very very similar to it!.. so you ALREADY GOT a great 2D animation software…
Really, i don´t think you must to do anymore with it!!! Pencil2D has everything to create beautiful work, it has the most basic elements to achieve it… the only thing you must to implement now is the stability … just that!.. less crashes.!! and Pencil2D will be the winner…