Thats a good idea however I wouldnt do a drawing that you would not mind getting ruined unless you plan on laminating it or putting it inside a large ziplock bag. I tried it, found a really cool picture I liked, and it got messed up because of the water (when I did water changes and somehow from the filter). As far as what scene the cityscape sounds like a cool idea. Other members have said pictures of fish have made their bettas flare so if you do that keep an eye on them. Post pics of the end results!!
Red, Casanova, Habanero, Falkor, Eragon
Thelma, Babycakes, Black Sheep, Mystique, Dew