I bought this pack of trees made by Noch at a model train store, they cost about 1$ a piece. Much better looking than the enamel paint lids painted brown.
They come in two sizes, compared with 1/72 and 15mm figs.
Furthermore, I have bought five Zvezda vehicles and ordered a box of Zvezda medieval peasants, Caesar adventurers and two sets of 28mm Copplestone figures. These will get going at least until December. Also planning to buy the PSC German infantry.