OP, really good base to start with, i wish i had that shape/size when i was your age lol, i didn't even hardly have a chest in comparison to you, good luck with bulking and make sure you get a weight...
I remember seeing this picture about a year ago or so, haven't been on here much just been lurking mainly haha but you changed the pic on the right side i am guessing? just thought i would post since...
you need to do alot of cardio, do it whilst you do your weights and then once you have cut up enough do a slow clean bulk and dumbbells are fine, for the first few months of working out i trained in...
lol you bumped this thread and i started looking through the pics without checking his post date and then looked at the name and was like.. ehh??? ... o.O lol
can definitely see you put on alot more mass, especially on your traps and in your gym pics, lats are looking huge, take a picture similar to your first one if you can so we can give better critique