Mastering Feedback Please

Hello all, I am a brand new author, and I am new to mixing/mastering. If you could, please give a listen to my song and let me know how the mix sounds. Thank you so much.
I also notice that my hihat and snare sound different on soundcloud than they do in ableton live. Is there a reason for this?
https://soundcloud.com/drummerrichie/happy-corporate-upbeat-preview-1/s-koUin