Maybe look at a few nature/landscape/rambling magazines? The Ramblers' Association might be a place to start. Not sure what these publications might pay, or if they'd accept freelance material, but he who dares....
Could you post them a bit bigger perhaps? They look great but I have to squint to see them proper like.
tried to post them large but would"nt let me saying something about file type being to big and that "so went to small "will try to repost on medium tmoz man "feeling too knackered at the moment .