Girl's names - which one?

[looki]

What comes to mind when you hear these names please and would they be nice names for siblings? Please list your favourite too (and why if possible).

Matilda
Imogen
Tamsin
Isabel

[HumptyDumptyBumpty]

Matilda - queen. Love this, it's my favourite, and love Tilly as a NN.
Imogen - slightly spoilt.
Tamsin - Outhwaite (whom I don't like)
Isabel - slightly icy, very pretty girl.

[NoncommittalToSparkleMotion]

Isabel. Tons of nn potential and no confusion over pronunciation.

[IoraRua]

Matilda - always thought it was a bit meh
Imogen - meh
Tamsin - quite pretty
Isabel - loads of these in my school and schools friends teach in, if that bothers you. Otherwise grand.

Tamsin wins

[JeanGenie23]

Matilda- lovely, very popular near me at the moment!
Imogen- a bit bland for my taste
Tamsin- ok as full name, despise tammy
Isobel- also lovely, I like this spelling!

[DramaAlpaca]

I really like all of them, with Tamsin (or Tamzin) being my favourite.

[Blueturquoise]

Matilda - love it, think of a smart little girl/ lady

Imogen - (my favourite ) gentle ladylike

Tamsin - east Enders

[squoosh]

Tamsin is my favourite by far.

The rest are fine but a bit blah.

[Sophronia]

Tamsin is my favourite too.

[iciclewinter]

I like Isabel best of those.

[PunkAssMoFo]

Matilda: hundreds of them. Mostly with grace as mn. Bored of it.
Imogen: nice
Tamsin: really like, heard of 2 in the last month.
Isabel: ok, but overdone