Hello! You're doing better now with the organic intersections so good job! You are being more careful with the contour lines and the forms look more stable now!

Lastly about the horse, a few things:

It looks mostly solid, but you aren't drawing every single form individually, for example the legs of the horse aren't divided in simple organic forms, you are drawing them directly as complex forms. Make sure you always approach everything on drawabox by starting with simple forms and then building up complexity from there. Here's an example on your horse. If you need more masses you can add them using additional forms like this.

This approach is explained on the demos, so give a reread to the donkey demo for example to see what im talking about

Second thing is that detail makes it a bit hard to see what you've actually done on the drawing, so try to either skip on detail, or take a photo before adding detail (cast shadows, texture etc) so it's clear what you were trying to do with the drawing.

So! Overall you're doing a good job, but I'll ask you to do one more horse drawing to make sure you understood what I just explained, good luck!