Fantasia per organo pleno in g major

Fantasia per organo pleno in g major.

Its been a long time since I have written music, close to a year I believe. This week a felt like writing something again, this is a four voiced fantasia for organ written in the "stile antico".

The structure is based on two melodic lines that follows each other in imitation and harmonic modulation. Both melodic lines are always together in the exposition. The inspiration for this is watching my 5 year old and 2 year old sons play (this time in harmony). My 5 year old does one ting, right afterward my 2 year old is doing the same ting, only a little bit different.

Please tell me what you think,