Can the UV sizes on these trees be proportioned properly and doubled? Ie some of the textures are almost 256x256 but not quite, so make them fit to that and then double them to 512x512. One of the sizes is 256x286, just make that one 512x512. I'm wanting to make the model bigger you see, but resizing it makes the textures low-res and blurry and we can't have that

There are 3 sub-models which use the same textures.
Thanks in advance!