Soldier and war horse

This image features a highly detailed diorama suitable for 3D printing, depicting a historical soldier standing beside a horse. 

The model is set on a thin, circular textured base. image created by ai and the files created on maker lab.
Subject Overview
The Soldier: A male figure in a 1914 -18  military uniform, including a Brodie-style helmet, a high-collared tunic with buttons and shoulder straps, trousers with gaiters, and lace-up boots. He carries a large satchel over his shoulder and is posed with his hand gently touching the horse's muzzle.
The Horse: A muscular, standing horse equipped with a realistic bridle. The horse features detailed anatomy, including defined musculature in the chest and legs, and a mane and tail.
Key Details for 3D Modeling
Fine Textures: The model includes
Thin Elements: The reins, bridle straps, and helmet chin strap are very thin and will require careful support or slight thickening for successful printing.
Overhangs: Significant overhangs exist under the horse's belly, the soldier's outstretched arms, the helmet brim, and the satchel.
Negative Space: There is clear separation between the horse’s legs and between the soldier and the horse, which helps with definition but increases the need for supports. I have not been able to achieve the hanging reins as they seem to frail with the supports. but aim to not having them it doesn't spoil the image.

This image is created in copper filament, but can be printed in brown and hand painted to highlight the detail. the original ai created image is included in the pictures to assist in hand painting but the actual model details are not as clear as the sample picture.
 
Orientation: Printing the figures separately from the base may yield the best results. The horse would benefit from being oriented at a slight angle to minimize support scarring on its muscular flanks.
Supports: "Tree" or "organic" supports are highly recommended, especially for the soldier’s hands, the horse’s head, tail and the thin leather straps. based on this design?