first interior with artificial lighting

[max montana]

hi there, i am engaged in getting know how about artifcial lighting. i dealed with vraylights and ies-lights a bit some time ago, but now i want to learn it comprehensive. this is the actual result of my tries. would be very thankfull for c+c to improve the image, and also the light design.
(there are some arefacts due to the low render settins)

[max montana]

another perspective

[max montana]

adaption, still thankfull for suggestions

[max montana]

another view, i don´t know what is missing, i am not satisfies.
maybe not all lights should hav a white color(more yellow)?

[Drawehn]

It looks a lot better already. I'd try with warmer (more yellow) lights and maybe a little more texture on the walls? What material are they supposed to be? They look a little flat.
Also a few more details might help to break up the regular architecture a bit.

Looking pretty good already though.