Without seeing your site - no. Still: If the eCPM improved and CTR stayed the same, more people are bidding on your keywords: congratulations. But it's also possible that you get so few visitors that random fluctuations in income (and eCPM and CTR) are to be expected.
well this month is screwy I had equalled my best day yesterday and have also been working on improving the CTR% of the channels that are sitting at 1%, so it will be interesting to see if there is an effect over the next 6 weeks had too many Ads per page I believe, so this should hopefully change the ratio