Since I went to all the trouble of putting on all this make-up, why don't you take my picture?
Now that I have some make-up on, can you snap a photo of me?
ーSince I went to all the trouble of putting on all this make-up, why don't you take my picture?
「せっかく化粧したから、私の写真撮って？」
to go to all the trouble of ...ing で「せっかく…する」
to take one's picture で「写真を撮る」
ーNow that I have some make-up on, can you snap a photo of me?
「化粧したから、私の写真撮って？」
now that ... で「…だから」
to snap a photo で「写真を撮る」
ご参考まで！
カナダ 
