The compliment of his rough sketch was met with what seemed like mild surprise as he gave Zenyatta a small smile. Taking the compliment, but clearly not used to others appreciating what talents he had. "Thank you."

When it came to the question about materials, that causes Skyfire to contemplate things a moment. "I'm not entirely sure to be honest. Before we can start anything, we need to decide on a location and size... plus what the local materials are like here."

Skyfire really wants Zenyatta's (and Bothi's) input on things, mostly because he isn't sure what would be most comfortable for them. Sure, he could guess... but that wasn't the same.