These are just suggestions, not criticism. I do most of the things I do to improve the look of my memes to please myself. Your memes are fine the way they are. But if you want to experiment, try this. ;^)
You can make the period you used in the last meme disappear. Open settings next to the text box you’re in, and you can manipulate text size from the default 50. Turn it down to 5 or zero and the text will disappear. Using a white background as you did you could have also just eliminated the black border around the text. When I have a very dark background I just switch the text color to black and the same outcome (make text invisible) also occurs. I settings you can also change the fonts. I have been using Tahoma Negreta when my text appears too small or dense.
