OK. I've got Melody, now here's my question. To keep the same look as a reference (hi-poly) model, how do I get the low-poly model (1900 poly sphere) to look the same as the reference model?

I started Melody, added in the working (low-poly) model and a reference (hi-poly) model, clicked in Align Model to move the reference model to align with working model, and I clicked in Generate Normal Maps without any settings changed.

And here's the result:



While I don't understand the concepts of normal mapping, how do I get it so looks the same as the hi-poly model?