Gallery for photographer

Hello – I am creating a website for a professional photographer
http://www.clairewoodphotography.co.uk/ I can take off the coming soon if anyone wants a closer look.

I tried Nextgen and have used that before but to be honest I found it so complicated, and I do not think the client would enjoy using it – she wants to add her own photos.

SO I trialled lots of plug ins and ended up using a product called Photo Gallery from Web Dorado. Its easy to use but fairly powerful..however

The client wants the following:

thumb nail images never cropped
images must not be desaturated
Images must keep proportions (aspect ratio) on all view port sizes – they must not scew

Can anyone recommend to me a gallery plug in which is this powerful – I will happily pay for it. Thanks