Mate I'd love to look like that!!

You look like a model. Pack some size onto yourself and you'd look awesome! You are like 4-6 months away from being really great.

I would use 200 test e 50 tren a/d 50 npp and maybe 50 anadrol. Bulk to like 10%

You are one of these guys that will shine with being Seriously lean as your special thing lol. If you are comfortable at 4.5 % then I don't see why you can't really push yourself and get to something insane like 3% come in really super shredded and dry and be "that super shredded guy at that show I went to"