The source for that wonderful Alisa and Suzuka doujin page is Sakichi Suzu's site. This person draws the most beautiful Alisa.
http://chisuzu16.web.fc2.com/
I'm afraid there aren't any other pages of it posted there, though. I think the author does sell doujinshi, though. If anyone ever manages to find more of this treasure, I'd love to have it myself.
Personally, I would go with "I love you", by the way.