Some people should just refrain from making videos of themselves. Nothing is wrong with being proud of your gains, but don't embarrass yourself and post it on YouTube. Take some pics and post them on here if you like, but people wanting to be like their favorite bodybuilder while making videos of themselves when they are out of shape and not very big yet is just ridiculous.
On that note, the lighting in your last vid was terrible. But you look like you have great a great chest and back. Arms seem to be lagging, I had this same problem for years until I drastically lowered the volume on them. How are the legs coming along? You didn't show them.