[Suze65]

Hi and welcome. Yes that looks good, you will need to line it with a thick liner, like pond liner, and also varnish it. Horsfields like to dig , so make the substrate deep, sterilised top soil is the best substrate, don't add anything to it, just top soil, and keep it moist, not wet, so if you squeeze it in your hand, it sticks together. This is to create some humidity, when he digs down and under his hide, humidity under the hide only needs to be 65/70 %.