I’ll have a go at re-doing it with more space in front and re-post the results. Yeah Joe it is a bit underexposed I’d say, it was getting dark and I took it with my Sigma 70-300 at full zoom which only went to f5.6 and with the relatively fast shutter needed it is a bit dark
Try cranking up the ISO. Have a look at my recent Red Kite and Buzard photos, many of which were shot at ISO 640 and 800 to get super fast shutter speeds in often poor light and rain.