Berkshire here too (Central Reading) and I agree there are various different clique looks.
Long puffer coats with trainers, leggings or straight leg/high waist jeans, pulled up thick white socks and messy bun on top of head is the most prevalent look. Though two variations - (1) no make up and genuinely messy hair or (2) artfully styled "messy" up do, fake lashes, fake tan, acrylic nails and lip filler.
Full on active wear with chunkier trainers plus hoodie if cold. Lots of Lululemon, Sweaty Betty, Under Armour, Hollister. Everything brand new looking.
Glamorous Instamum look, all neutral colours, wide leg trousers (not usually jeans), oversized cashmere jumper, cashmere scarf, oversized Max Mara wool coat, ankle boots (not trainers), bouncy swishy balayage hair, big sunglasses, more subtle fillers/make up/nails etc.
Slightly older hippy/new age mums. Long patterned shirt dresses, waterfall cardigans, colourful jewellery, dangly earrings.
Rebel mums - brightly coloured hair, piercings, bomber jacket, DMs. Our fabulous vicar falls into this category!
Goth or semi-goth mums. This is probably my closest fit. I can't tell you how easy it is to decide what to wear/what matches when everything is black anyway!