Mind sharing the colour of Avent milkbottles ? And usually how many milkbottles will you be preparing for your newborn ?

I brought 1 Avent natural glass bottle, 2 Avent Classic and 2 Avent natural bottles (All in white). I wasnt sure which bottle suits him. I found this blog quite interesting. The mother gave her views on differences of Avent Classic and Avent Natural bottles. http://thelovingmum.sg/2013/04/feeding-bottle-woes-over-with-new-philips-avent-natural-bottles/ Subsequently, my baby does not like Avents bottle and it leaks from drinking. Hence we changed to pigeon bottles.