Attached is your pic showing *approximately* where 'breakover' should be. Look again at Trinity's lines drawn on your horse's hooves, and go to the ELPO website, to learn the why's & wherefores of this. You can see how much excess toe there is. Everything in front of that point should be bevelled. Without doing this, the mechanics are just working against the foot, putting extra leverage on the long toes, stretching laminae and allowing the seedy toe in. My (very average) diagram shows you, side-on what I mean by bevelling. The red shows where the existing toe is, the green line where the dorsal wall should be, and where the breakover should be in relation to it, and the blue line is how the toe needs to be bevelled, which will allow it to grow down without strain, to become well attached.
In addition, heels look a bit long & forward, and bars, esp on the foot I drew on, look like they've been forgotten, overdue for a trim.
If you put conventional rim shoes on these feet, it will further exacerbate the mechanical issues, put further strain on the toe wall(& other areas strained by long toes, inc navicular region). They will also cover up the area with the seedy, making it harder to treat. I wouldn't be shoeing this horse with rims until her feet can become healthy. But if you do, use *properly applied* shoes which put breakover back where is should be and relieve the toes, such as 'natural balance' or some such. I'd also ensure the hooves had adequate sole/frog support.