Akira & Jakov, thank you for your kind remarks.
The first and the third were made with a samyang 8 mm f/3.5. I borrowed this lens from a friend as I wanted to play with a fisheye but didn't want to buy one since it will not see enough use. As this lens does not cover full frame, some heavy cropping was needed.
The close up was made with an old sigma 300 mm f/4 af apo macro. Lousy af, but nice manual focus and attractive for close ups with a minimal distance of 120 cm and magnification 1:3