Very Good Selection.
I'm liking this. it has a very roomy feel to it.
This Is obviously a continuation to your last picture, which is cool that you are expanding on an Idea, but it also kind of leads to a slight problem with the size. As of right not this interior is a bit bigger than the wagon in your last one. This probably doesn't matter, but It's just something to keep in mind.
Your Detail on all the different chemicals is well done, Different colors, labels; although I kind of wish some were big enough to read or have identifying markers (Skull and cross bones for some of the more hazardous stuff?)
The one thing I might have a slight problem with is the glass cabinet. It looks cool, but quite impractical in a moving carriage. Realistically the bottles would move and clank too much and shatter each other and the glass in the door, possibly falling out of the cabinet all together.
But, in a fantasy setting, things like this are pretty much free game, so it's kind of all a moot point, but just another thing to keep in mind.
The detail of the potions seem to carry over in to the rest of this, which is very good. The entire Piece seems to share the same level of detail and stylization, again which is good since you are remaining consistent.