You just gotta use common sense. Looks are a VERY IMPORTANT factor in a shidduch but not the MOST important one.
Its very right to date girls that you think look pretty but its wrong to go only for the absolute most gorgeous girls. That means looking on outsides.
As a side note, how many woman start out beautiful and then put up a ton of weight, or get a whole bunch of pimples on their face or whatever…
Looks is up to hashem too…