Hi there Will,
Welcome to OSM. I would like to make a few comments about this changeset. firstly, landuse=farm is a deprecated tag and should not be used. the original landuse=farmyard would be more appropriate here. Secondly I can see you've added crop=grass to a field, this is perfectly fine if this is specifically a field for growing a grass type crop. however if this is actually a grazing field for animals then it should be tagged with landuse=meadow instead of farmland. farmland is specifically for growing land. 
Hope this helps, 
Kind regards,
Kits
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            Published using OSMCha: https://osmcha.org/changesets/153904407
            