Read/WriteConsoleW can read/write unicode chars to the console, but they won't display properly unless the console font contains the relevant glyph. I don't think the default font has support for anything outside the 255 chars of the current codepage and to compound the misery, you can't officially change it to Lucida Console programmatically as SetConsoleFont isn't documented. It is exported from kernel32 however, so you can GetProcAddress it providing you can find a valid declaration. Vista and above includes SetCurrentConsoleFontEx though which would seem to do the same.

As for the picture, as in a bmp/jpg, then no. Console windows are owned by csrss.exe so nearly all useful window related functions return access denied. Nothing stopping you from having an ASCII art background though :-)