By removing some redundant images from my data set and fixing some of the captions, I have finally trained pony XL to reliably replicate the character, including her unique shoes and basket (though the gatling gun part of it still needs some work). This model is very flexible in terms of both style and poses it can do. Just prompting "1girl,solo,chaperomon" is enough to get the character's likeness, but some non-base Pony models may require some additional prompting. In addition, to actually get her shoes, use "animal slippers" in your prompt. I have included some of the additional trigger words that help, but keep in mind they may not all be necessary depending on what model you are using. It seems to work best at a strength around 0.95 for most models, but it can go as low as 0.8 or as high as 1.0 depending on how much more flexible you need it.
