Nearly there!

I think 10 entries is a respectable total, and a nice number for people to judge between. Too many entries and people would get bored halfway through viewing them

As far as voting goes, 10 is a slightly awkward number to start with, if you begin with 1vs1 you quickly end up with an odd number of entries and things get messy. A battle royale style every entry in one round does give a solid verifiable ranking of 1-10, but if voters only get to cast one vote each it could look quite imbalanced.
I ddon't know how feasible it is but in a battle royale I'd like to see each voter get to vote for their top three choices, first place getting 3 points, second place getting 2 points and third place 1 point, or a similar system, helping to lower the chances of anyone (me) scoring a zero

However it happens, I just want to see the models