Haven't seen these in person so can't pass first hand judgement, but the one's in the link Bib posted are probably offending your eyes because the grille shell is too far forward and sits a bit too high. That coupled with the hood panel wrapping down too much make it look nose heavy. The channel over a stock A style frame is too shallow to make it look low enough, but if it were mounted on top the frame wouldn't have enough heft to balance the body.

Dave, if you get a chance to post a pic of it on the deuce rails with the grille shell in the right place it might look better.

Don, your comments about "the look" being subjective is fairly accurate. However, proper proportion is a constant. If a car's got it, it will look right whatever the style. If it doesn't, most folks who can tell the difference will feel "uncomfortable" about it even if they can't express why specifically.