You're focusing on your legs waaaay too much and making gains in the muscles that don't make you look/feel more muscular. If you want to trim up your chin and get a 6 pack you have to do cardio, get out running or biking 3 days a week, every other day. On the days in between do your pull ups, arms, chest, back, and abs. Example week, I'm no professional, so anyone that knows better please chime in, but this is what I would do in your situation:
Mon - Pulls ups, chest, abs
Tues - Run 2-3miles (or work up to that)
Wed - Bicep/Tricep, abs
Thurs - Bike 45min (stationary or outside)
Fri - Pull ups, back, abs
Sat - Fun cardio (heavybag, sports, 2hours of sex, etc)
Sun - Rest
Only take protein right after lifting and keep it under 50grams. Look up a few basic exercises for those muscle groups that make your workout around 30 minutes doing sets with short rests (20-30 sec), or make super-sets out of 3-4 exercises with 2min rests between.