Merging Rewards + Possible Commission Discounts? (Patreon)

Ey gang. Hope you all are doing alright. :)

I've been thinking of merging the rewards and just keeping things at like, $1 minimum. You guys think that'd be good?  Also, for those that can't really check out the PSD files that I upload for the higher tier, would you rather I upload things separately? Like, sketch/lines/colors?

I've been forgoing the uploading the line work due to just thinking maybe people could check out the PSD file, but thinking on it now, would people care to have the PSD file? 

ALSO! I know some people do this, but I'm considering opening commissions on here, with it being a lil bit discounted. That sound alright?

I'm a bit unsure on all this, as I want to do what's best for everyone, but I don't want to shorthand myself a bit here. What do you guys think?