"36"
"6" with ..*...

"M"

Name is "Grecian Water Carrier" This is, as you say, model number 125 but it is 'Class 2' Model 125. (Class 2 = Statuettes over 8" in height.)  Your piece is dated 1898 but it was being made as a stand alone figure from at least 1867 and possibly earlier. The model was made in 4 sizes and each was used as a Cricklite base.  Antique British Ceramics Information Resource

Model 125 is Class 2 "Groups from Midsummer Night's Dream."   "New Grecian Water Carriers" came in 4 sizes. Royal Worcester Porcelain, from 1862 to the Present Day by Henry Sandon

"The Bather Surprised" modeled by Thomas (later Sir Thomas) Brock in approximately 1874. This was made in three sizes, each was used as a Cricklite base. Antique British Ceramics Information Resource.

According to Royal Worcester Porcelain from 1862 to The Present Day, by Sandon, Plate 29, the modeler was Sir Thomas Brock and the 26" size was made in 1902. It came in three sizes the largest is 26 inches.

Model number 1151 Lotus Flower was identified in Royal Worcester Porcelain - Sandon.  The model illustrated is not stamped with the Royal Worcester trademark.

Candlelabra Version

It would not have had a name. It was just described as a vase with figural handles and was first made in 1889.  Antique British Ceramics Information Resource

These are the 'Cairo Water Carriers' both in their plain form and in 'shot enamels'. These water carriers were released as stand alone figures as model No 1250 in 1887. They were modeled by James Hadley after he set up his own independent workshop and the masters were sold to Royal Worcester. They later re-released them as model number 1890 in 1886 as the Cricklite stands.  Antique British Ceramics Information Resource

"B 71"

This was actually made in two forms, with and without the dish included in the base.  Antique British Ceramics Information Resource

(Pair of females)

Made in England, 143 over H

"6" 1891
"Z" or "W"

Another of Hadley's figures adapted for Cricklite use but, I am not sure at the moment which one. It cannot be dated 1924 if the only date marking is eight dots. Antique British Ceramics Information Resource

G 9 85, Grainger Factory, 1897. 

1131, 40 and 25. Hadley