Bad for your eyesight, right? Nooo, nothing so unimportant as eyesight. More like wrong thread colour usage going undetected, right up to the point of taking a photo to show you my progress.
Yes, I took Mr Squirrel into the bathroom (best light in the house) for a photo only to realise he was a two toned squirrel. Colour blocking in ombre shades. Fabulous.
He is supposed to be the colour of his head and the red-brown of his tail. Not the orange-brown of his bottom half. Looks like tonight's crafting is going to involve a fair bit of unpicking!