What each of us provide as an opinion on "show worthiness" is of course based on our own opinions. If someone here is a judge, that is also based on an opinion, albeit it should be on the standard of the breed. A picture is very hard to tell.
I would suggest you find a bulldog handler or trainer in your area and then get a hand's on personal evaluation.
Kind in mind that a "show" dog is evaluated among the other dogs that are entered in that class at that show.
"Opinions are FREE, Suggestions are TRUSTED, Advice is RESPECTED" bwl @2013