You're talking about the final rendered image, not the VUE save file, right? Number of objects won't really affect the size of the image file. Did you try opening it in Photoshop or PSP and saving it as a JPG file instead? This will compress it some... watch the settings so you don't lose a lot of quality. Another way to save on the file size is to resize the picture a bit smaller, again in Photoshop or PSP.