Most of his portraits were competently done, but seldom came close to the artistic levels of contemporaries such as John Singer Sargent, Philip de Laszlo or William Orpen. His paintings of other subjects exhibited more technical and conceptual variety. Most seem competently done and some are interesting, though I find it hard to claim any as a true masterpiece.
Below are examples of Colllier's portraiture and more casual works.
She of the famous Huxley family.
An example of a typical Collier commissioned portrait.
He also painted Kipling in 1891.
Collier was not above doing more than one version of a painting.
The titles are as I found them on the internet, though the subject is the same.
This has a Pre-Raphaelite feeling to it.
Probably done in the 1920s. A nice portrait using an interesting pose.
More hard-edge here, but also interesting. Note the Japanese screen in the background contrasting with the French settee.
A modernized takeoff on a well-used subject. The composition is odd, and it's hard to notice the reflection of the officer returning from the war seen in the mirror because it's quite small. However, it does form the apex of a triangle based on the subjects' heads, which help a little.
A rare Collier landscape.