Having an experienced Senior Mech Designer provide some guiding advice on the side helped Ves a lot.
They didn't cause him to change the fundamental nature of the Aurora Titan design. However, the insights he developed after thinking over Professor Ventag's leading questions led him to refine the decisions he already made into more optimal implementations.
In general, the assistance enhanced the qualities that the Aurora Titan already possessed.
At this stage of the design process, the professor also went to work himself. Ves hadn't designed much more than an outline of the internal architecture, but this was arguably the most important part of the mech since it had to support so many active systems. Without a robust enough architecture, Ves could forget about getting the polarizing module and the alien crystals to work!