I agree with ‘yo’ in that some sketches would help, these are what show you off and this is what employers and fellow employees will be seeing while you’re with them and explaining things. These are often more insightful than the final polished products.
Having said that your photography of your pieces looks excellent - good, clean style and the blurred person gives that all important scale. I like the bookshelf in particular, detail views are good as this is what makes the piece. Did you do these yourself or pay to have them professionally done?
The only thing I would suggest is as you said you are from an art background to add some of the research images that you have used or have been quite important/influential as I’m sure you have very rich research leading up to these solutions - this adds another dimension to the design as it is showing off you researching skills as well - which are very important.
Hope that all helps, good luck with it!
Please leave your view on… The eternal question...
RK