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Hi , With first look i felt that the design is missing or you mixed up two designs.
Design is good in looks , but first look is confusing.
- The first part have completely different look than the bottom design. (Colors , white area gives a lot of empty space than the bottom area). It doesn't give a balance in design.
- You can use little more "Drop Shadow" for logo to make it stand out.
- Rest is good. Your idea of placing the portfolio at top is unique.
Regards -Sadia-

Good suggestions