When I was acquiring and adjusting the sizes on these images, there were several factors in play.
If I recall correctly, the 1-4 star ranks were individual stars that I had to put together myself. I resized the single star to have a height of 125 pixels which is almost the same height as the largest "non-com" ranks. If I resized the two star rank to be narrower I would lose height versus the one star, and I didn't think the "look" was good compared to the space saved. I did reduce the height on the three and four stars as they were clearly too large.
I angle thought about offsetting the two stars on an angle, making them each smaller but preserving the height with a smaller width. I decided against it because it would be less "authentic". Generals wore their stars in a row, not at an angle.
Here are the rank graphics as they exist. Feel free to create
proposed replacements and I will take them into consideration.

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