19" Mesh wheels... Will they look bad? Am I making a mistake?

[AusSuper]

maybe put 18's on the front, im going to eventually get a set of 18x8s and 18x10s i thought that was pushing it for tyre (sidewall) side, theres a black 73> on here somewhere with 19's or 20s on it, they look overly massive but the rear is a mile high because it doesnt have an engine etc in it. im sure others would be more helpful though.