The distance looks good - the angle of the left-side hammock suspension looks steeper than it needs to be. This can be fixed by moving the tree straps lower on the tree. You'd be surprised how effectively you can change the lay of the hammock by adjusting the height where you attach to the tree, rather than worrying too much about how far apart the trees are.
I find I prefer a slightly-loose ridgeline when I hang my Blackbird. Not as much as yours, but just a a tiny bit of give. Find what works for you, and stick with it.