Nice progress!
I think the captains chair looks a little skinny. I found this image for reference
(captains chair ortho) of course tho, that chair is based off of the second season and beyond chair, but the season 1 chair went on to be the basis for TLE captains chairs. Both chairs share a similar shape.
other than that the next step would be to determine how detailed do you want to make your mesh most ships of the era had panels resembling what you see on the galaxy bridge ramp.
Oh, and a ceiling would be nice.
After modeling is done then just like with ship modding create the uv's then the textures.
followed by creating lightmaps.