hard to say. it depends on ur face shape n cuts too. ur current hair colour is nice too. go to a wig shop n try those funky colour hair strands. u can pin hem up in ur hair. that might giv u a better idea.
i think the girl who you have put pics of has used extensions.
i'd be wary of colouring my hair any of these colours if your hair is naturally dark brown/black. the bleach really ruins in and the coloured sections always look dry and out of place. plus they look horrible when the colour starts to fade.
there was a trend for this like... 6 years ago or something. it didn't look good on anyone apart from naturally light haired people who had their hair dyed black and then some coloured sections.
i loved too but iam afraiad my hubby make fun of me but surly iam gona do frosting dye tecniques which is combination of any too like golden with copper.hmmmmmm:)
but any way cutegirl go for colour extension instead of dyeing these colour but if u really like it go for theone genelia is having.
How about just getting some clip ins in various colours? That way you can experiment with different colours and you can find a shade that suits you best. If you get bored of a colour or find that it doesn't suit your taste you can just unclip the hair extensions and go for a different colour! It also minimises any damage that dying your hair in this way would cause, as you would most likely need to bleach the hair before apply the shade of your choice.
im with amoramor on this ...those are clip in hair extensions in funky shades! u will have to bleach your hair to get those colors and those colors will fade out fast as you wash your hair .. also as a tip....when it fades and u'd like to maintain the color - u can go back to the salon and ask them for toner to refresh the color -costs like 10-15 bux but u'd have to do it every month or so! especially if u choose red color!