guys i need some help on my camera.. i've taken a picture of a sunset. but i dont know why there is alot of noise as i have reduce my iso to 100. the noise is freaking clear.. so i wanna know is this wrong composotion or there is sumthing wrong wif the camera itself or the lens? im using 18-55mm. ill put a sample pic i took.
i see some of people here the pics they took with the same lens im using and same camera im using but get a good composition wif no noise and clear picture. can i get some tips from you guys?

i see some of people here the pics they took with the same lens im using and same camera im using but get a good composition wif no noise and clear picture. can i get some tips from you guys?