Yes it is possible to change the strength of your bump map.....Just go to your bump map settings and change the bump depth.....Just play around with it and you will get the right texture. Also, with the skills you have, I think you could get a job easily...Just make a nice reel. I have one crit. You can kick my ass and throw me in a ditch for saying this, but I think the top of the lower lip needs to be the same color as the bottom of the top lip. I hope that makes sense.
It's Dr. Know, Not Darknow