Looks pretty good! You could brew this as written and end up with yummy beer.
I do want to suggest a few things. First, replace the Munich with Maris Otter and mash higher. I find the signature Munich malt character out of place in Mild. Same with the dark Crystal malt. I'd increase the 60L Crystal to a half-pound and omit the 120L. I think you're on the strong side for Mild, also; you list the OG at 1.042 (ProMash gives me 1.046), and the style guidelines say 1.038 max. While there are areas in which I disagree with BJCP, Mild OG is where we are in perfect agreement.
Mild is supposed to be delicate and, well, mild. It's supposed to be the sort of beer you can drink pint after Imperial pint after coming out of a Birmingham mill. It should have flavor - just enough roasty-toasty character to let you know you're having an ale - but not overwhelming to either palate or sobriety.
That said, there are strong examples of the breed, notably Sarah Hughes Ruby Mild. I prefer softer, less assertive Mild, that's all.