What would you all think of some new tiers? (Patreon)

So this is some thing I have thought about and some thing people have also suggested but I have been unsure of it at the moment. I figure I could brain storm some ideas and see what you all think. I really wanna make sure you all feel you are getting some thing for your money. I tend to ramble but its just my attempt to give as much info I think is needed to understand my logic

Alternate 10$ tier

So right now we have a 10$ tier where people can submit their ideas and those ideas will be voted on and which ever one gets the most votes. The major down side is that some people's ideas get picked more then others and Im sure that can be frustrating to other patrons. The upside is that their idea if picked is made into high quality art that I would usually charge at least $30 for.

So what would the alternate tier be? Simple I would still take peoples ideas but instead of putting them in a poll I would draw them a monochrome bust. Like this

I could probably get allot of stuff done faster with out having to wait for polls and what not too. One down side is that if every one switched to this 10$ tire over the original I would have to think of some thing new for the $5 tier as voting on things is their main perk.

What about a $15 tier?

Same idea as above but the drawings would be more full body, like these drawings

So yeah let me know what you all think, I really wanna do what you all think is best, thanks for every thing