To be honest, I dont like it...
Not trying to be harsh but being a designer myself I dont find this design appropriate for a professional portfolio...
If i have to say something positive thought, The part that i like the most is the showcase box ( headers / landing page / online ads )...
I think in general the layout is too complicated, The shape is funky and I think you should try to focus more on the presentation of your work... this is what people want to see when they go on a portfolio, they want to see what you do and maybe contact you, focus on these things... You should take your best work and showcase it in a way to make it even more appealing.
Right now all the text is kinda trown in there it doesnt feel readable, i start reading one of the testimonial and cant finish, its not easy on the eye...
Blue is ok, but you might want to add some neutral colors aswell or complement it with something else... check out
kuler to find some inspiration on color swatches