Being on lockdown with an energetic 3 year old must be a challenge. At least, I can help with the family picture part.
If you haven't already taken the family photo, I suggest doing it outside with natural light - ideally, under a light overcast sky or when the sun is behind a cloud. That way there won't be harsh shadows and people squinting. The simpler the background the better. Frame your family group shot from about the waist up so the faces are decent sized and the ground underfoot does not show. (If the ground shows, it becomes much more difficult to create a realistic transition to the replacement background.) Once you have a good family shot, I can retouch it to perfection, remove the existing background, and replace it with a nice field of bluebells.
My bid of $60 is for image editing and the license fee for a good quality stock image for the background.