Image: Vishnu and Saraswati

Image Source: Wikipedia.

Image: Saraswati

Saraswati

Kalighat album, circa 1880.
From the San Diego Museum of Art (Flickr).

More about Saraswati at Wikipedia.

Image: Ganesha, Saraswati and Shiva in Japan

Benzaiten, Kangiten and Bishamonten

Daishō-in Temple

(Wikimedia)

For more about Ganesha as Kangiten, Saraswati as Benzaiten and Shiva as Daikokuten in Japan see Wikipedia, and also more about Daisho-in Temple.

Image: Lakshmi and Saraswati

Lakshmi and Saraswati
circa 1910
(Ravi Varma Press)

Wikipedia has more information
about Lakshmi, goddess of prosperity,
and Saraswati, goddess of wisdom.

Lakshmi with the two elephants is sometimes called Gajalakshmi.

Image: Saraswati appears to Yajnavalkya

Saraswati appears to Yajnavalkya

(illustrated Mahabharata)

You can read more about Saraswati and Yajnavalkya at Wikipedia.

Image: Lakshmi and Saraswati

A Kalighat of Lakshmi and Saraswati 

(19th century; Christie's)

More about the goddess Lakshmi and Saraswati at Wikipedia, and also about the Kalighat style. This "Blue Saraswati" is a form of the goddess Tara.

Image: Ganesha and Saraswati

Image source: Ganesha and Saraswati

Detail: