cycling waterproof jackets are generally a rip off. A decent walking jacket is half the price and twice the quality. Alas I do like that rear pocket. I generally wear a Musto hunting jacket if its cold enough otherwise any decent walking jacket. I carry a thin fleece. I am nearly always getting off to walk dog in various woods etc.
The most important piece of kit nobody has mentioned upto now is obviously spikes. I now have two Santos travelmasters, one will as usual have spikes on all winter the other will have mountain bike tyres on all year round. The ice spikers are excellent off road just like mountain bike tyres But the studs start to turn in by the end of the year. So I will swap bikes when I think the weather suits. The electric bike has studs through out the winter and they will only last one winter unless i use the bike sparingly. I will endeavour to do so this year. PS the Musto jackets tend to me baggy and I don't normally get overaly hot anyway. Wind resistance leaves a lot to be desired.