This is exactly it. I look at your portfolio and think to my self what could you help at consultancy?
Your honestly not showing any ID/form/CAD style development. So you cant help out on that. And you mechanical engineering side doesn’t come through at all.
What exactly do you think you could contribute to a studio? And showcase that.
Even doing something a simple as making a custom case for a Raspberry Pi in Solidworks and showing that you know how to make bosses, reveals, snaps, draft, build in proper tolerances would do more to show your Engineering background, and most likely what you could help with in a studio environment. Something like this. Me and the RaspberryPi /2 | MarcoAlici
If you wanna work in CE, you need to show how you can help with a CE project.
Basheer is a bit more on the EE side, but still shows how you can cross both engineering and ID into a good portfolio piece.