Several years ago, I took this pictures after getting my first DSRL, Nikon D5000. I started to experiment with the "reverse lens" technique. I had a lot of fun and a sense of accomplishment seeing how you can get a real macro photography without using a proper macro lens (they are really expensive too).
HOW DOES A REVERSE LENS WORK?
It works exactly like it sounds. You just need to mount your lens backwards, with a ring adaptor and get really close to the object and shoot it!! You are gonna loose the electric connection between the body and the lens. So you need to set up the camera on manual mode and set the aperture of the lens manually as well through the manual aperture rings. Unfortunately, the majority of moderns lenses have no manual aperture ring.
THE EQUIPMENT I USED:
I have no adapter so I try this technique in a different way. I mount on my camera the 18-105 mm lens and hold with my hand the 50mm backwards and get a few inches away from the object.
You really need to be patient and willing to try over and over again before getting a decent one, but it's worth it.
Below you can see some of my result using this technique.
I give to this photo the title ALLIES
Even if the ant looks bigger and potentially a powerful enemy the ants and aphids are allies. The first ones protect the others from predators. The aphids secrete a sugary substance that ants appreciate enthusiastically. It's always interesting to see how different animals species work together.
Don't pay attention to the signature (It is the one I used sometimes during my first year photographing )
Mosquitoes can be very interesting creature to photograph.
This is my entry for the #macrophotography contest by 
Thanks for reading. Any comments or advice are welcome and appreciate.
All the photo and texts are original