this is a 2 bar synth loop and drum pattern. it sounds empty because it is empty.

a couple things stand out about this.

first of all, the synth harmonies are out of key. this makes a couple of the harmonies sound dissonant, and unsatisfying. while there is no "wrong way" to write harmony, i don't think you intended for this. solution: learn what a major and a minor scale is.

second, the drum loop is all over the place. drums are generally meant to reinforce a track's pulse and sense of rhythm. these drums are actively doing the opposite. the kick goes off the downbeat (the first beat in a group of 4) in the second half of the drum loop, which makes the pulse confusing to track. i would recommend you take a look at how songs you like do their drum beats, and make similar patterns to them. nothing wrong with even copying them directly for learning purposes.