That first hairstyle would be really hot on you. Plus the pseudo mohawk is very hot right now and it's the kind of haircut you could style different ways if you felt like it. Honestly, don't listen to anything your agent says. Shave the stash, get another set of photos with the new hair and stash. If the gig you want is looking for the look you've got now, just grow the stash back. But I think you'll be more likely to get jobs (and girls) if you don't look like Ron Jeremy.