I would suggest giving him a pair of trousers that look less than, well, tights. His shoes look like they might be short boots, but they seem to just disappear into those very snug fitting trouser legs. I'd suggest tapering (or rather, the reverse of tapering, the correct term for which eludes me) the legs a bit.
On the other hand, if he'll be sitting at a poker table for the whole game, maybe you won't even see it.
On the other hand, if he'll be sitting at a poker table for the whole game, maybe you won't even see it.