George - I had to learn the hard way ... Most WebMaster ,as I did several years ago, attempt to resize their graphics by having the WebPage to squeeze them to the size of their choice. This causes the degrading of the graphic's image. Inspect to two above examples. The first is displayed in its true size of the graphic, and the second was reduced in image size by changing its size in its placement on the WebPage. The results are obvious in their appearance. The file size does not change, as they are both 29521 bytes., and they will both load at the same speed. The uniformity of the graphic's size is not as important as the quality of the image;
When I create a graphic, I attempt to determine the graphic's size based on the complexity of the image.
You have a beautiful WebSite ...
Take care Brother