Welcome to OpenStreetMap, and thanks for your edits around Langwathby recently. :)

If you’re going to be adding a lot of farmland, it would be good to use the tagging scheme for farmland in the north of England, which differentiates between arable crops, high yield grass, and pasture. See https://wiki.openstreetmap.org/wiki/User:Gurglypipe/landuse

Note that you probably also want to join the polygons for adjacent fields together.

You may also want to turn the ‘Cadastral Parcels’ layer on (in ‘Overlays’ under ‘Background Settings’ on the right) and ensure the aerial imagery is aligned to it. I think the alignment offset for around Langwathby is (0,0), but it can vary from area to area, by up to about 3m in each dimension. This is due to parallax error (and other errors) in the aerial imagery. The cadastral parcels can otherwise also help with getting the boundaries for woods right, where they’re obscured by branches.

Hope that makes sense, happy to answer any questions if you have them :)