Help with sentence

ウチの庭です。少し狭いですけど、なかなか立派です。こういった資料写真は、妹と弟に撮って送ってもらっていますが、アシスタントからは、僕の撮った写真より分かりやすいと好評です。


Can someone translate this, especially the 妹と弟に撮って送ってもらっていますが part,is the person writing this conveying that his younger sister and brother took the photo, and then gave it to him?
My translation is something like

This is our garden. Small but nice. These pictures are taken by my younger sister and brother, and they are better than the pictures I take, or as so commented by my assistant.

送ってもらう means that his younger sister and brother send it to him.

資料写真 (and アシスタント) shows that he is a mangaka or something and uses those photos as materials.