I included some other characters (tagged generically) to help round out the style and make it more capable.

v6+

Default Ivy: ivy_pepper, feline, 1girl, female, solo, black eyes, yellow sclera, pink nose, whiskers, ears, brown fur, black hair, short hair, bob cut, tail, furry, anthro,

Default Costume: gray flat cap, yellow cardigan, white collared shirt, gray pants, short pants, gray knickerbockers, plaid socks, brown shoes,

Flashback Ivy: ivy_pepper, feline, 1girl, female, solo, black eyes, yellow sclera, pink nose, whiskers, ears, brown fur, brown hair, long hair, bangs, earlocks, tail, furry, anthro,

Flashback Costume: yellow coat dress, yellow hair bows, red neck bow, dark gray leggings, gray socks, gray gaiters, black shoes,

Human Ivy: ivy_pepper, human, 1girl, female, solo, black eyes, black hair, short hair, bob cut,

Helpful negatives: countershading, stripes,

v5 and Earlier:

Tags:

Default Outfit: on model, screencap, flat color, ivyc, 1girl, female, solo, black eyes, yellow sclera, brown fur, black hair, short hair, bob cut, cat, tail, flat cap, grey flat cap, yellow cardigan, white button_up shirt, grey pants, short pants, plaid socks, brown shoes, furry, anthro,

Yellow Dress: on model, screencap, flat color, ivyc, 1girl, female, solo, young, black eyes, yellow sclera, brown fur, brown hair, long hair, bangs, earlocks, cat, tail, yellow dress, yellow hairbow, red bow, grey socks, grey gaiters, black shoes, furry, anthro,

It can add stripes to the character at times, so I sometimes put "stripes" in the negatives. Similar with "countershading" if you don't want two-toned fur.