/3/ - 3DCG

>>388101
Looks okay.

One thing you might want to start practising is overlaying UVs for similar objects. If you overlapped every duplicate object, and you live in a perfect world, you can then double the size of your UVs giving you more resolution to work with at the expense of texture repetition. I've highlighted in different colours a bunch of very similar objects I can see with little texture variation. The balance here is if these sections are going to be seen at the same time, and if the repeated texture will be noticeable.

Another thing you can do is cut symmetrical objects in half, and mirror their UVs. I've marked some of these sections with a dotted yellow line. I'm a bit tired and haven't thought it through 100%, so that red lines you have going may not work with the symmetry. Again, this comes down to whether or not you'll notice if the textures are mirrored across the surface.

Using these techniques will allow you to 'increase' the apparent resolution of you texture (less blurry pixels) without actually increasing the texture size.