Looks like it has! But it also looks like I may have flubbed the aspect ratio as they look a tad stretched. 55px for the height might be the golden number - I tested it out and it looked better
If you wanted to test it yourself without changing the code and if you use Firefox, you could use the Inspect Element tool.
If Firefox is indeed used, right-click on your layout and select the Inspect Element option, then "Style" on the right bar that'll come up at the bottom of your browser window. From there, there's a little mouse indicator on the left that'll allow you to select any element on the screen. Click on your mood icon (any one will do), and the code will come up to the right. My little bit of code will be there and you can type in the new number(s) and see it presented live without changing the code itself on your journal.
If you don't use Firefox, then you'd just have to change it manually and see if you like it. >_>