You could try something like this:
'post__not_in' => get_option('sticky_posts'),
'post_status' => 'publish',
'meta_query' => array(
array(
'key' => 'Country',
'value' => 'UK',
),
),
'cat' => 1,
'meta_key' => 'pyre_overall_score',
'orderby' => 'meta_value_num',
'order' => 'DESC'
