The composition continues across folio 58 recto opposite (D01234; Turner Bequest XXXVII 117). There is land beyond the water seen at the right of this view, so Turner has probably moved farther round the coast of Kent from Margate and Reculver (see folio 56 verso; D01231; Turner Bequest XXXVII 114) into the Thames estuary. The opposite shore is still closer in the drawing on folios 58 verso–59 recto (D01235–D01236; Turner Bequest XXXVII 118–119).
Andrew Wilton, J.M.W. Turner: His Life and Work, Fribourg 1979, p.315 no.143, pl.24.