you may want to later the hull plate pattern around the pylons, otherwise you get that cruddy kind of "Stuck on pylon" look to it. Or atleast if your current texture skills allow for such a modification. Also, like on a miranda, they back edge of the pylon sticks out the rear of the saucer. IMHO, would also improve the design.
As for the chimera...I located the pix but have no way of postign them. Somehow Wsftp corrupted my login and I can't get access to the ftp and I need to bail for work right now. So...I will get back to ya on that...(note that it is a soverign/akira era design)
edit-did I make enough typo's in that post or what? I'll fix it later..lol