If you liked the Akiiro Bousou Biyori manga, the Anime-Planet community thinks you'd like:
Both are really short one shots, written and drawn by the same author. Each is about a girl and a boy in a semi-romantic situation. Akiiro is far more ecchi, with a lot of panty shots and some nudity as well.
They're both also drawn in full colour, and generally have a pretty good standard of artwork in them.