Over the years I've found nvALT to be a much leaner way to take notes than Evernote. A bundle of plain text files is so much nicer than that big fat application - especially on a older Macbook Air like mine. I don't really care for Evernote on my mobile device either.
Until very recently, I've just gone without image note-taking both on desktop and mobile. But now using the very handy Launch Center Pro on iOS, I can easily upload a picture to Evernote (via Dropbox) using this Launch Center Pro action 1. Just add a title and some tags when prompted and let 'er rip.
Feel free to install on your iPhone and try it out for yourself! 2