When I 1st started cycling in winter I made the mistake of buying an Altura Evo night vision jacket which whilst it's lovely ..... 2 miles in and it's way too hot ... it now gets used for short cycles to the pub / friends houses ad walking the dog in the dark.
I've switched and bought one of these jackets
https://www.cyclerepublic.com/boardm...yABEgKrNPD_BwE
They're wind proof which I think is essential on all of the front facing parts and breathable material on the rear facing areas .... probably the best bit of cycling kit I bought and you can just adjust layers as needed.
Under this I wear a long sleeve wicking base layer and if it's really cold a t-shirt as well and have never needed anything else but I'm only cycling down to about
Zero degrees Centigrade.
Legs ... just cycling shorts and a pair of quite thick track suit trousers.
Feet are one of the worst affected especially in the wind and was wearing the hiking boots that look more like shoes than the really heavy ones, my feet were still cold so I bought some cycling overshoes to put over them for last season. It made them a lot warmer and kept the wind out but are a PITA to put on / take off, made my shoe tighter so sometimes I got cramp in my feet and as they're neoprene some sharpish grip knobbles on my pedals have made holes in them .....
I've just bought some of these but it hasn't been cold enough to use them yet and I'm not "allowed them" until after my b'day next week.
https://www.hargrovescycles.co.uk/10649/products/2018-specialized-defroster-trail-mountain-bike-shoes-in-grey.aspx?currency=GBP&gclid=EAIaIQobChMIreeMwMfD5AIVDLTtCh3mwgeCEAQYBCABEgLdDvD_BwE
Knit hat ... look for a skull cap if you really need one .... I haven't but I do wear a snood around my neck / up to my bottom lip and sometimes over me ears .... some of these can also be pulled up over your head and you don't need a thick one just quite thin.
Where to put layers .... because I wanted the ability to peel off or carry extra I've used frame bags, I have one of these in the summer which will take a small / thin jacket, a lock, wallet / phone and also have a small frame bag for tools etc.
https://www.amazon.co.uk/gp/product/B000OZBMZ8/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
That said as I may want more layers in the winter so one of these is on my b'day list as well which should be able to take everything so can lose the frame bag as well
https://www.chainreactioncycles.com/.../rp-prod167046
Gloves .... I haven't mastered that yet .... hopefully this year though.
I would have thought you could use some of your running stuff though if you have wicking t-shirts and not sure what jacket you wear??