They look sharp to me, infra-red usually has a bit of noise in the shot it is part of the appeal. They look great Shiela - no advice I can give you other than keep on shooting, as Kort has said, some subjects work some not so well, it is usually a surprise which ones so it is trial and error. You have made a great start here :)

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html