I've had these shoes for quite a while now and I've started to tire of their dull colouring, it looks good in some lighting conditions but most of the time i find they look very muted, but I much prefer leather shoes to be either darker richer colours, so I'm thinking of dying these, but I don't know what shade/colour I should dye them, if I should keep the caps/tongues/backs a different colour to the rest of the upper, etc.

My first instinct would be to use a light brown shoe dye then give them a coat of rub-off dark brown dye(that would usually be used for leather sofas and such) to give them a more detailed, distressed look(which i really go for in shoes).
Am I completely off-target here? what do you guys think?