[Harv72b]

Shillix made some great points already. In addition, what I see...

-Your VPIP is about 3-4 points low of optimal for this spread of limits, especially for the lower end of your spectrum. You're probably passing up on some +EV opportunities with hands like small PPs and suited connectors/semi-connectors.

-You aren't attempting to steal the blinds nearly enough, and you likewise aren't defending your blinds often enough. Again, in these levels you likely aren't seeing too many true blind steals against you and the number of instances is so small as to be statistically insignificant, but if your style of play truly does include folding 17 of 21 times in HU steal situations, that's something you need to work on improving before you consider moving to higher limits.

-That folded to river bet % is way higher than it should be, and indicates that you might be calling to the river with too many weak draws (although this is acceptable when the pots are often huge), or else going too far with weak made hands when you know that you're beaten & drawing to few outs.

As you said, though, your hand sample is very small. Since it also contains hands from 3 different limits, you can't really draw any concrete conclusions based on these statistics--I'm just noting some possible problem areas at this point which you can then look at in more detail in your hand histories. However, especially with something like river fold % (which is currently based on only 271 instances), the cards you've been getting likely have a much greater influence on your stats than your playing style does.