Frankly speaking, I don’t find your marker sketches strong. Why? Cus it isn’t effective in showing the form.
Don’t get me wrong, I don’t mean you have to do high contrasting marker sketches, because I have seen very very effective marker sketches with very low values and contrast.
I also learnt that story telling in your portfolio layout is important. People are more interested in how you get there instead of the final product, means they want to know the precess. You’ve shown a lot of final results but almost nothing on where your inspiration was from or the evolution of your concepts.