Nature was the main reason buying my first DSLR.Living on a mountain place most years of my life i tried to see through the viewfinder the small things around us.Macro was my first love.But the big advantage of photography is that you can't stuck.Lanscapes,portraits and street photography are also very interesting and adventurus.That world is far more complex and productive.
Keep the good...drop the bad
Sigma 10-20mm 3,5
Canon 75-300 USM
Tamron 90mm
Canon 50mm 1.8
and some MF and M42 mound