Those picture are beautiful. I actually recognise the outlines - I buy my colouring books from Kmart too. I saw once that Kaiser Craft has books too, they are lovely but really expensive... Kmart is more my priceline 😛
I find mindfullness colouring invaluable. It slows me from spiralling into the actmosphere during my hypomania attacks. The act of selecting the colours and carefully filling and shading each leaf, petal, or feather is just so centreing it draws my mind out of the clouds and into exactly what i'm doing.
Please post more images. Maybe one day I'll get the courage to post some too.