How I'd describe Topso? He's very friendly, and more reserved that outgoing. He talks pretty quietly and he doesn't overstep people's boundaries with extreme excitement and demands.

He and Reptu are business partners because he owns his museum and displays the treasures for all to see that Reptu finds. But more accurately, they are friends. It's their love for discovery and knowledge that bind them together. The museum Topso owns is all about learning and giving the public a genuine interest for the past, and Reptu feels comfortable that the artifacts he finds will be used for good. But in another way, they clash because Reptu likes to think more about the future, while Topso likes to think more about the past. The past, in fact, scares Reptu because of the lack of technology, but Topso finds it comforting because of the simple life.
----
Designing the body of this character was pretty challenging. I had the hardest time with the hands/feet. From the images of realistic-looking triceratopses, they have something like elephant hooves, except they have toes at the same time. Glad that Topso now has a body after so long!