Looks like you shot on AE and full focal with max aperture on the lens and default normal settings.
You will learn to be a little more steadier.
Most of the shots are quite good unedited...the N 40 is a decent starter and you have a fairly good walkabout lens,
I prefer to preset my settting and shoot on Aperture priority with f stop at it's sweet setting stopped down with the sharpest contrast mild saturation so the shots come out good keepers and use the editing for touch up and cropping if need be.
Experiment with the Landscape and sports mode for maybe a slightly better shot than AE.
In time you you will catch on the jargon and enjoy the stealth composure and prestige of making the shot.
Pretty darn good for a first try!!
let's see some more pics soon.
In the meantime it is time to google some topics like how to shoot wildlife, wildfowl, birds and look at some gallery pics to compare your improvement. Make the best of what you have and do not yearn for some other lens yet.
Welcome to the wildlife group.