- I chose the antonyms sweet and sour, because I thought it would be a good idea to show my cat and a food. Because my cat can be sweet and sour, also a food can be sour and sweet too. It was a creative idea and I think it looks great put together. I used Adobe Photoshop and put the same picture in twice in the order they are in now. And put a colored box behind the images to give it an effect and make the images pop more.