edit 04.03.15 Just to remind readers that this plot wasn't done as a projection of ancient genomes onto the present-day ones and is not straight comparable to the original Haak's plot (which projects ancient genomes). All ancient genomes are a part of the composition. I'll do a projected version in the next update.
edit 05.03.15 Reduced the amount of Finnish samples to correspond to average North European sample size.
I also made a new map showing projected ancient genomes, i.e. ancient genomes are placed according to coordinates of present-day populations and ancient genomes themselves have no effect on generated principal components. Click here to download.
edit 06.03.15 Following the advice sent me I ran new PCA's with and without projection of ancient samples using original Haak's data (just same SNP's) and I didn't see difference compared to my previous plots. Yamna samples are still on my plots a long chain between North Europe and Turkish/Armenian/Middle East, not like on Haak's plot, northward from North Europe.