It looks great actually, but perhaps you could up the resolution. Given that you're posting your QR code, perhaps you'd want some free Authorship (ATS) ERC20 Tokens? They're hosting a promotion for their ICO, so if you sign up to their newsletter with your email, then you and I both get some free ATS, 75 to be exact, where the amount of ATS you get is worth a combined amount of $10. Here is the link if you're interested: http://bounty.authorship.com/ref/F8577106