also don't ignore big major sounds in the background! use all of the instruments you can hear in a song (ex. drums, guitar, bass, vocals, and in this case, different sounding dubstep wubs) when mapping. this will make your map feel more like an actual representation of the song.
ex: 02:06:709 (5,1) - there is a big wub sound in the bg, make sure to map it
00:09:170 (2,3) - use grid snapping to get straight (vertical/horizontal) sliders, and then move them to wherever you want! or you can ctrl+c / ctrl+v to copy and paste sliders you've made
time-distance equality is a basic concept in mapping which basically means: longer timing between the notes, bigger distance between the notes.
while this is not mandatory, going against this will make your map really annoying/frustrating to play.
I get that this is an easier difficulty so maybe you want to keep the jumps small even easy/normal difficulties can have bigger jumps. video on this is link in general (all diffs)
keep your NCs consistent!
if you're going to start a NC at a certain sound, keep repeating it (like you did with your first three combos)
some examples of a good place to NC would be:
00:07:881 (8) - (not 00:08:232 (1) - )
00:17:139 (5) -
(there are more but you get the idea)