they are great – number 2 is I reckon the winner in my book, although its a hard choice
have oyu thought about an alternative to canvas – say either a print laminated onto acrylic or a box frame – these deserve a better texture than canvas – and those two mediums might be good for it.
I have a pro account with Loxely Colour – they produce fab prints – not cheap, but I know they have some offers on 20×16 box frames and 20×16 wraps (which come either as a canvas or photo finish) – give them a try (you owuld need to register, but thats a doddle given that I registered when I wasnt even trading properly)