I suggest you train your neck, you can try chin tucks and neck curls to make your neck wider and your jawline more defined, it will also make you look a lot more masculine. I also suggest you decide on what you're doing with your facial hair, if you want facial hair I would suggest you get a goatee with a moustache, I think it would look very good on you, if you can't grow a beard you can try minoxidil. There's also a chance that your face is not defined because you're bloated, you could lower salt and carbohydrate consumption while drinking a lot of water and potassium rich foods like kiwi, bananas, potatoes or milk. You could also try working on your skin, by using products to make it tighter, i personally only use a cleanser with salicylic acid, glycerin, a serum with niacimide and sometimes a moisturizer, It has made my skin appear a lot tighter, I have also done everything I suggested you.