Fugue State, An Air For Air (this one is my favourite) - love the calming airy feeling. Did you record a live piano?
Ad Astra Celtica - I like the percussion here and uneasy feeling the progression gives.
Very nice composition and mixing, I like it very much that all the elements are audible and are complementing each other perfectly. The pieces are bright and refreshing and have some nostalgic feeling. Great work! :)