3 Yods and a mystic rectangle in my chart

I've noticed 3 Yods, a mystic rectangle, 2 butterflies and 2 t squares in my chart.

Interpretting it is beyond me. I'd appreciate any thoughts or commentary on it.

Can't seem to add an attachment yet, but my details are
15th September 1973 Maldon, Essex, UK, 11:00pm

Hopefully, this post adds the pic