Def a floor plan. I always look at to see where I could potentially extend/ add/ knock walls down if needed.
Def a single in cot room, and 2nd bedroom is that a toddler bed? I would want to know how a full size single or even double fits. Most 3 beds have x2 double rooms and a single.
Can you even just borrow/ buy a full size mattress even I just for photos. To have in bedroom 2 and 3. Can you fit a double in bedroom 2? If so take your mattress off bed, put in 2nd and dress up nicely just for a photo then move back.
I would be tempted to move baby cot into your room and leave a single in that room. As someone who still has our toddlers in cotbeds in our room I would like to see that a cot at least can fit nicely in main bedroom, especially with the current recommendations that baby sleeps in your room at least 6 months
Dress rooms a little as others mentioned. No need to buy things but a dish/ bowl with some oranges in on table etc makes a difference.
Also I would make sure lights are on/ photos taken when its light/ sunny out if possible.
Oh and 2nd sofa looks like it hasn't got enough room, can that be rearranged? Ie would it fit where tv is?