well judging by those pics, then a hunting sporran would be fine but it would depend on what you're wearing with it. if you opt for a Lovat tweed Argyle the brown one will be fine even for evening wear (yes, a tweed jacket and brown sporran for evening wear! this whole black barathea or charcoal tweed is relatively new. the original was the green or blue tweed).

if you opt for the black jacket then i'd got for the black, metal topped one. i have actually seen that style of sporran given out as part of hire packages here in Aberdeen. in fact my dad got one almost identical to the one pictured with his hire outfit last weekend but decided it was too dressy and borrowed one of my plain ones instead.