I'm not an apologist for the prequels, I understand why people hate them. I've just never thought they were entirely bad and dismiss-able, personally.
They definitely required a huge amount of filter-ing for me to derive enjoyment from them and reconcile the important elements as being part of the SW universe though.
That said, so much of the design -characters, costume, props, environments etc.- from those films is amazing, if not quite as revolutionary as Ralph McQuarrie's designs from the original trilogy.
I'd really dig it if Mike did portraits of say, Amidala and Darth Maul.
Wouldn't want Mike to do them unless he felt compelled to do them though.