Hi Alex!
We can use "ubicumque" (wherever, everywhere) only with verbs like "to be", "to stay" etc. because they do answer a question "where?" (pol.gdzie?, lat. ubi?)
But "aspicio" (look/gaze on/at) requires the accusativus (if is followed by an object) and answers a question: "to where?" (pol. dokÄ…d?, lat. quo?).
It behaves quite like a verb "vado, vadere". Compare, please:
"quo vadis?"- Where are you going?
"quocumque vadis" - Wherever you are going/ Wherever you go.