I agree with Elect117 but (without a better picture) it looks to me like the 90 is factory (just not as shiny as the pipe on either side) and the last strap that I can see is below where a coupling would be so it looks like a violation of 230.28(B).
That's because it is earthquake country. Just imagine the mast swaying and the guy wire going slack and then hard line taught. I would expect that guy to fail.