first you text often doesnt fit and isnt blended enough try to blend it in a bit, and your rendering of your characters or w/e isnt the best, soif you want it took look half decent no offense to your work, id smudge the edges or have some kinda brushing to cover the edges up, id try a border on some and what program you using ?
nice work with the animation i know only how to make it a gif 🙁